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                            UT                 2                                             Th
                                                                                      January 200

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                                                                                                                                                                  The magazine of the

                                                                                                                                                                  Society for Underwater Technology

                                                                                                                                                                                                                UT 2

                                                                                                                                                                                                                                                                 May 2009

                                                                                                                                                                                                                The magazin
                                                                                                                                                                                                                Society for e of the


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                                                                                                                                                                                      March 2009

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                                                                                                                                                                                                   Underwater Vehicles

                                                 The magazine of the
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                                                                                                                                                                                                                                                                                                                                    mber 2009
                                                                                                                                                                                                                                                                                  e of the         logy
                                                                                                                                                                                                                                                                     The magazin           r Techno
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                                                             ch       log                                                                                                                                                                       Subsea Surv
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                                                                                                                                                            Remote Vehicles

                                                                                    Offshore Technology
                                                                                          Survey Update
                                                                                    Underwater Vehicles                                                                                                                                                                                                               ipment
                                                                                                                                                                                                                                                                                                           Subsea Equ icles
                                                                                                                                                                                                                                                                                                                   r Veh
                                                                                                                                                                                                                                                                                                          Underwate     Sonar

                                                                                                          UT   The magazine of the Society for
                                                                                                                  Underwater Technology
Do you need to know what is going on
but have no time to find out?
The Society for Underwater Technology is the most influential and active society of its type in the world.
Its members are typically subsea professionals, making decisions at the highest levels. These form the
core readership of the Society’s magazine, UT2. This authoritative quarterly publication is also sent to
qualified non-members, academic bodies and libraries around the world.

The idea behind the magazine is that the printed word is the most friendly and effective medium for
conveying information, however, few have time to wade through all the journals that cascade onto their
desks. UT2 distils subsea issues and presents them as punchy and accessible articles, well illustrated
and easily digestible.

While the articles range from subsea tourism to aquaculture, the main focus, broadly representing the
orientation of its readership, lie in the oceanology, survey and offshore sectors. This particularly leaves
UT2 as the magazine of choice for subsea oil and gas professionals, where most of the mainstream
offshore titles concentrate on drilling and seismic processing.

Importantly, the magazine is also represented at the major subsea and offshore exhibitions around the
world at which the Society both co-organises or just attends. Furthermore, it is distributed at the many
subsea training courses that are organised by the Society, educating tomorrow’s engineers
and technologists.

An increasing number of people familiar with information technology prefer the convenience and
versatility of the internet to get their subsea news. UT2 is therefore re-launching its web site In addition to the current and back issues of the magazine, will also have an online news
section and a number of useful tools to attract people onto the site.

UT2 is read by people you want to be talking to. Why not consider UT2 in your advertising strategy?
                                                                           Editorial Plan
    Editorial deadlines are the first week of the month prior to publication

     1Q                                              3Q
     Seismic Aquisition                              Seabed Processing
     Underwater Intervention                         ROVs and AUVs
     Subsea Tiebacks                                 Mini-ROV systems
     Maritime Security                               Sonar Imaging
     Oceanography                                    Marine Salvage
     Mariculture                                     Harsh Environment
     Ocean Mining
                                                     ONS Stavanger
     Subsea 2010                                     UUVS
     Subsea Tie Back Forum
     2Q                                              Deep Water
                                                     Pipelay and Trenching
     Offshore                                         Mooring
     Subsea Processing                               Flexible Risers, Flowlines and Umbilicals
     Survey                                          Underwater Communication and Telemetry
     Control Systems                                 Subsea Navigation and Positioning
                                                     Diving and Manned Submersibles
     Offshore Technology Conference, Houston          Underwater Cameras

Demographic Profile

Aug 2009 print run: 4400
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                                                                                                      Mechanical Data Sizes (mm)

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           Underwater Vehic
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   A major limiting
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    factor of
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   shaped survey vessels small ship-                                                                                                    UNDE RWAT ER                     VEHIC LES

                                                                                                      Full Page
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             is the wave

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    E n te rp ri s in g U S
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  heights in which
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     they can work. This
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  prompted Chicheste
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         r-based engineers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  ASV to design a
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    new unmanned
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 behalf of, C&C Technolog with, and on
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 carry out operations          ies. It can
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        in wave heights
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 out of the range
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   of many traditional

                                                                                                                                                                                                                                                                                                Bleed                                                                                                                                                                                                                                                                                         307 by 220

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             The first vehicle
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               is currently being
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             transported to C&C
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             base in Louisiana
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 for the
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            of testing. The company next phase                           Payload space for
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            that this vehicle           contends
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              could                                      sonar, process and
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            survey costs surveys result in lower                                                          Air inlet and

                                                                                                                                                                                                                                                                                                Trim                                                                                                                                                                                                                                                                                          297 by 210
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    by not having to                     storage electronics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            employ larger boats.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     Single lift point                                    Advantag
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          Called the USS                                                                                                                                                                                                                                 The fact that
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         6300, the unmanned                                                                                                                                                                                                              the middle of
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         semi submersible
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           is an evolution of                                                                                                                                                    Aluminium watertight                                    means that it
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         the SASS survey
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          and surveillance                                                                                                                                                       mast housing vehicle                                    disadvantage
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         platform which was
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             designed by                                                                                                                                                         services, exhausts,          Twin rudder
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        ASV back in 2001.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            It broadly retains                                                                                                                                                   ducts                                                  “Being surface
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        the same cruciform
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             shape of its                                                                                                                                                                                                               unlike its AUV
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        predecessor, although
                                                                                                                                                                        John Mair

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        meet specific survey modified to                                                                                                                                                                                                                  6300 can main
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              demands.                                                                                                                                                                                                                  fix to ensure p
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      C&C envisages                                                                                                                                                                                                                                     AUVs, convers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       using                                       Releasable
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      to support or replace the USS 6300                          nose-cone
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       satellite fix whe
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             the traditional                                                                                                                                                                                                           then use the le
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      hydrographic survey                                         for launch
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            launch. These                                         Multibeam sonar                                                                                                                                                      navigation to m

                                                                                                                                                                                                                                                                                                Half Page Upright                                                                                                                                                                                                                                                                             250 by 90
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      conventionally-shape                                        and recovery
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            d vessels, with                                                                                                                                                                                                           due to its const
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     their hull-mounted
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         sonar, are typically                                                                                                                                                                                                         its main advant

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     around 30ft but are
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          limited to waves                                                  Attachment for the                                                                                                                                       the form of an im
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     around 0.5–1m which                     of

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             can restrict their                                            sidescan sonar                                                                                                                                            endurance,” said
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              Annotaded diagram            transducers                                                                                                                                               Hook.            o
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    of                                                                                                                                                                              falls
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   “A boat has a relatively
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              the unmanned semi                                                                                                                                                          As reservoir pressure eventu
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             large                            submersible                                        Lead-filled keel                                                                                                                      AUVs and
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         Gullfaks, Åsgard are power
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   waterplane – the                                                                                                                                                                          Marine diesel engine
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 gives the vehicle                                                                                                                    stored all benefi

                                                                                                                                                                                                                                                                                                Half Page Horizontal                                                                                                                                                                                                                                                                          120 by 180
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      projected area of                       USS 6300                                                                                                                                                                                     will
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  lying in contact with                  hull                                                                                                                                                                                            Ormen Lange energy in
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         the water relative                                                                      stability
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      The fact gas as
                 what sort                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        to its displacement,”                                                                                                                                                                                                                   pression to bring that the
bsea sector and happen?                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               can intake dro an
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          said Dan Hook,
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 technical director                                        a very high tower,                                                                                                                                                             each case, StatoilHyair and
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     of ASV. “As a wave                                          balanced by a long                       Variable fuel space                                                                                                        gas to considerin
             this                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                passes across the                                                                                                                                                                                                Slow turning            ners have been the surface
ary to make
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           keel,” said Dan Hook.                                                                enough to give 4kts
                           market.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     boat, the buoyancy                                            “One of the                          for four days or 8kts                                                                   propeller                        inhowever, to the t
              the changing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 afforded by this                                         design requireme                                                                                                                                                                            addition means

                                                                                             PAIV the Way
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   large waterplane                                            nts demanded by                                                     for two days                                                                            option can                  on
a 7 assesses
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 pushes the hull up
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      and down.                           C&C Technologies,
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  however, was the                                                                                                                                         system diesel installed d
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     being far more
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          ability to launch
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            it from the back                                                                                                                                               facility. The compres

                                                                                                                                                                                                                                                                                                Quarter Page upright                                                                                                                                                                                                                                                                          120 by 95
                                                                      lled decen                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               “At the other end
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  of the spectrum                        vessel in a similar                   of a
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            moving from the
                                                allowing contro               penalties                                                                                have been                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               would be a vessel
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               way that it deploys                                                                                                                                                  Powered by a 30h
                             ndence Hub, thereby avoiding the                                                                                            technology                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 with no waterplane                   its suite of Hugin                                                                                                                                                                 hardware, and the
     to date, Indepe                                                                                                                      ces in ROV                  to conduct                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               at all – a submarine
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             AUVs. This                                                                                                                                                             engine,        high en
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            be made this year.
                                         and                                                                                 ion, advan               devices able                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       meant a smaller
                     g operations                          wire.
                                                                                                         Since its incept have evolved from                                s able to                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  or conventional                                       keel section and                                                                                                                                                      density of the diese
      and landin                       ntional steel                                                                                                         ped vehicle                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       AUV. This allows                                          similarly, a smaller
                       with conve                                                                                      They              to highly develo ntion applications.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 it to work                                                     tower section.                                                                                                                                                       enables the vehicle
      associated                                                        to existing                       meteoric.         tion tasks,                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       independently of                                                                                                                            Left: The more
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     development of
                                                    e fields linkedr cost-effective                        simple inspec               sophisticated
                                                                                                                                                                   ped a series                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               in other ways.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                waves but is limited                                                                                                      cruciform SASS.                                                                                   “The survey at a speedt o
                                     nal satellit                                                                      a variety of                  also develo                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        “The sonar engineers                                                                                                                                                                                  importan
                      on additio                              anothe
                                             capacity is by the operators. This                            carry out                 industry has s (AUVs) that can
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        had a very good
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               at C&C                                                     The lower keel is                                                                                 pression is an
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    for four days or 8kt
                             with spare                                                                                years, the                                           ndent of                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         in the general aspiratio
       infrastructure is likely to be used
                                                         more                   technology,                In recent            underwater
                                                                                                                                              vehicle                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    fix on
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        motions were allowablewhat
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         foreshortened in                                                                                           two days. This mak
                                                                connection                                                                                 largely indepenormally                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           The USS 6300 ASV                                                                                                                                               the                                                                                                        sub

                                                                                                                                                                                                                                                                                                Quarter Page strip                                                                                                                                                                                                                                                                            58 by 180
        strategy that                        s in subse
                                                                                                            of autono
                                                                                                                        mous                 ake tasks,                 are                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       can be                                                         and                                                     USS 6300                                                                                                   suitable passing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              an all-encomfor large na
                          improvement                    d diver depth.                                                     med to undert the surface. These                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                considered as a                                             what weren’t. The                                                                                                                                                                                         Simon
        will require applications beyon                                                                     pre-program                  from                        emulate ROVs                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           between the two
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            hybrid compromi
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              se                                           design we                                                     Right: The USS6300                                                                                         system,” said
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              ing charting surveys an
                         in                                                                 now                           commands                     could they        Subsea 7                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            extremes, with the                        developed together                                                                undergoing sea trials                                                                                                 subsea te
         especially                                                               d tees,                    interactive                duties, but         activities?                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    hull being submerge                                                              allows surveying                                                                                                                                                        mine counter
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               project leader, measu
                                                            work on groute g. Hot tap                                      inspection
                                                                                                              involved in for subsea intervention                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                d and
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       in a maximum of
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         2m wave heights                                                                                                                                                                            are n
                                         carrying out             ms with weldin could be                                                                 development
                                                                                                                                                                          path.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            tower or mast protruding only a                             although it can survive
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               operations. “There
                           has been                                                                            and be used first steps along this
          “Subsea 7                             e the proble              pting flow,                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       surface. Because          through the                                               in much                                                                                                                                                         compressors currently
                              ed, to obviat           without interru                                                      the                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               this has a much                           greater sea states.”
          DNV approv                 to be used                                                                has taken                                     ment with
                                                                                                                                                                          AUVs                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             smaller waterplane
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   “The first SASS
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                large technology desi
                     logy, able                                                                                                                  its involve               with                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               , the vertical                                                                                                                                                                                                                      had an enginethis bec
           techno                                                                                                            ch group
                                                                                                                                        began                agreement                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    accelerations are                                                                                                                                                                                                                                      dressed before at the
                                                                              of a longer                       The resear                    reached an                    to its                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          of an order of                                                                                                                                                                                                                        top
                                                              will also be                                                        Subsea 7                    for access            form                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  magnitude smaller                                                                                                                                                                                                                                         of the tower, whic
                                             e tiebacks                      associated                         in 2002, when Oceanographic Centre ed AUV was to                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              than the boat,                                                                                                                                                                                                                   was good at reducing
                           these satellit of the main issues ensuring the                                        Southampto
                                                                                                                               n                torpedo-shap depths of 3000m
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          which accounts
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          for the greater                                                                                                                                                                                                                       There may be
             “Many of                                                                                                               logy. This                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 underwater noise  deplo
                              he said. “One and, in particular, hydrate                                          Autosub techno a vehicle able to
                                                                                                                                                          work at                  ent                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    stability.                                                                                                                                                                                                                                            developing and and
             distance,”                        nce                              or                                                                                    ry equipm                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                appealing for military
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               They ca
                               flow assura below a critical wax                                    s                           te for                     ning senso tion markets.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               compression.
              with this is                   fall                   wet insula
                                                                                  tion system                    the templa of 30 hours, contai
                                                                                                                                                           cable inspec in the
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               applications,” said inc
                                does not            . “Pipeline
                                                                                                                  for duratio oil, gas and subsea
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         “The original SASS
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 ed production
              wellstream                                                        thicker, heat                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              design featured                                                                                                                                                                                                     Hook. “The engine
                                  temperature coatings become                                                                                            the host vehicle                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       as wel
              appearance                    as the                            the mullti-
                                                                                             layers                aimed at the             was also                payload.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     bon recovery, hull
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              brought into the
                               able, but                        table, and                       on                            Geosub, it           Autotracker                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   expe
               are prefer                 be less predic                            ms. Chevr                      Called the          SeeByte’s                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 and operational
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              later SASS models.”
                               starts to                     cracking proble pound                                  development
                                                                                                                                   of                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              fields
                                 e subject
                                               to stress                      illion                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             and OPEX) as

                                                                 a multi-m             issues.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        rem
                can becom                        tly leading                                                        Continued
                                                                                                                                 next page                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             38                                                                                                                                                                                                                                                                        waters and more
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              The advantage of
                                  are curren                     some of these are more                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                UT2 AUGUST 2009                                                                                                                                                                                                                                                          the
                and Statoil project to address                         conditions                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                ronments.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              lower engine was
                                  ry                     cooldown                          ors with                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            that
                 joint indust           where the                    by more operat
                  In applications -pipe will be used g systems.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        sio
                                 pipe-in                         heatin                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            Subsea compres
                   onerous,                       electrical                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         d to
                                   turning to                                                   s                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  ficient compare
                   some now                                                      that require                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         the
                                                                  r key area                      Arctic,                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          attempt to suck
                                                  l, is anothe or conversely, in the                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   fie
                                    in genera
                    “Materials, it sour, HP/HT wells,                                          have                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 push it from the
                                                                           , where wells

                                   Be                     development down to -60o C make                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           positive health
                                           for future                    of                             als                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           lac
                     another region                   temperatures                  y, exotic materi                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                because of the
                                     in external issue. Unfortunatel                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 traf
                     to operate             on a key                                 inspect.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        ties, less boat
                                                                       weld and
                      material selecti                   difficult to                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 leakage   or explos
                                        notoriously                                         a proportion
                      can also be
                       “Many new ent to be fabricated
                       of the equipm licence. This can
                                                                          now require part of a
                                                                         locally to
                                                                                    the design
                                                                          and trainin
                                                                                          g builds up, skill
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            N      ext year, StatoilHydr
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   commence wet trials

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           hyperbaric welding
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        o will
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         of its
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   revolutionary automated
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                system that could
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            systems in the habitat
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            fine-tuning to ensure
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   can be used for
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      As the Gullfaks
                        development sary infrastructure ent to match the local                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             significantly extend
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           which some pipeline depths at
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            Larger Diameter, Deeper                                                                                                                        NES                                                                                                                                                                        continues to ma
                        until the neces design the equipm
                                                                                                                                                                                                                                                                                                                                                                                                                                                                       O                                                                                                                                                                                                                                        Water

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         De ep er Wel di ng
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             pe r
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 repairs can be
                                       has to                                                                                                                                                                                                                                                                                                                                                                                                                                      ne co                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              an accelerated
                          base and
                                        supply chain.
                                                                                          the world
                                                                       ases around ed by our reel
                                                                                                       to                                                                                                                                                                                                                                                                                                                                                                         cons ncept
                                                                                                                                                                                                                                                                                                                                                                                                                                                                      Many deve idered
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           carried out.                                    The PRS uses an
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           inert gas (TIG) or
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                orbital tungsten
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               gas tungsten arc
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    In the future?                                                                                     increased hydro
                                                          of spoolb                                                                                                                                                                                                                                                                                                                                                                                                                              by To ntly be                                                                                                            The type of pipeline                             welding (GTAW)                                                                                                                                                                                                                                                                                                               the Gullfaks So
                                          a number                          to be install          y, one under                                                                                                                                                                                                                                                                                                                                                      digita comp lopme                                                                                                                                                          repair is governed                           process. The welding                                                                                                                                                                                   The Remote PRS
                           “We have           pipelines
                                                             and risers
                                                                            at Vigra, Norwa
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     an       nt       tal
                                                                                                                                                                                                                                                                                                                                                                                                                                                                    Sm l oil field ies ha of the , is the
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  ing                                                                                                     by a number of factors,                         process itself is fully                                                                                                                                                                                                                       was                                                                             gas compressi
                                         our                                                            another                                                                              umbilical!
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   including the                                  controlled from the                                                                                                                                                                               originally qualified
                                         ls. There
                                                        is a new baseo, one in Brazil and                                                                                           Look! No                                                                                                                                                                                                                                                                            art
                                                                                                                                                                                                                                                                                                                                                                                                                                                                   and Fields initia ve somee-field.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          water depth and
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            the diameter. At              surface. A typical
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              automated weld                                                                                                                                                                                       between 180m and
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        for work                                                                         2012/2013 to t
                            lay vesse                           of Mexic                         risers to a                                                                               autonomous                                                                                                                                                                                                                                                                                       tive                                                                                                                          present, large diameters                        can take hours to                                                                                                                                                                                                                              370m
                                               in the Gulf to fabricate pipe and using the                                                                                      The PAIV                                                                                                                                                                                                                                                                          Total Chevron, BP’s                       sort                                                                                                                                    pipeline                                  perform, but is of                                                                                                                                                                                   to bridge the gap                                                                                    life.
                                                                                                                                                                                                vehicle                                                                                                                                                                                                                                                                                    Fie such               of                                                                                                     repairs in up to 180m                            exceptionally high                                                                                                                                                                                                                           between the
                                          . These all
                                                           have                    local labour when the                                                                                                                                                                                                                                                                                                                                                         This ’s e-field ’s iField lds of as Sh                                                                                                                                           water depth                                   quality.                                                                                                                                                                                           diving limit and the
                             in Angola                            mainly with                                                                                                                                                                                                                                                                                                                                                                                                      takes s, ho the Fu ell’s                                                                                                              are carried out using                                                                                                                                                                                                                                                                          deepest
                                                high quality                        ses, so that             as the                                                                                                                                                                                                                                                                                                                                            well would                                                                                                                                                                       diver-assisted                                                                                                                                                                                                                                    pipes eligible for                                                                                     StatoilHydro i
                              consistently                     reliable proces                 the same                                                                                                                                                                                                                                                                                                                                                       that and da
                                                                                                                                                                                                                                                                                                                                                                                                                                                                              incorp this weve                  ture                                                                                                     welding and the                                   Recognising the                                                                                                                                                                                                                            contingency
                                                table and                       product is                                                                                                                  35                                                                                                                                                                                                                                                                                  ide      r,                                                                                                                                already
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         pipeline repair system developed                                    general push                                                                                                                                                                                         repair in the North                                                                                    at various com
                              same predic l arrives on site, the                                                                                                                                  2009                                                                                                                                                                                                                                                                       ta       ora
                                                                                                                                                                                                                                                                                                                                                                                                                                                             but characte proce te the a furthe                                                                                                                                                                            to explore in more                                                                                                                                                                                                                          Sea.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 (PRS).                                                                                                                                                                                                                                                                                                                                                  including wet
                                     lay vesse                                                                                                                                         UT MAY                                                                                                                                                                                                                                                                     in ad                 ssing intell          r.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           environments, StatoilHydr
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     Diverless hot
                                                ,” said Mair.                                                                                                                                                                                                                                                                                                                                                                                               opera       ditionrises a           techn igent                                                                                                                                                                                              o took the                                                                                                                                                                               Welding qualification               tap tee                              T
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          developed by
                               other bases                                                                                                                                                                                                                                                                                                                                                                                                                 the     tio        , inc digita                                                                                                                                All repairs beyond
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              the 180m water              decision to expand                                                                                                                                                                                                                            work
                                                                                                                                                                                                                                                                                                                                                                                                                                                                en n an             lud       l       ology                                                                                                                                                                                      its pipeline repair                                                                                                                                                                             has also been carried                                                                                    is relatively s
                                                                                                                                                                                                                                                                                                                                                                                                                                                          proce tire fac d electr e the oil field                                                                                                                         depth limit have

                                                                                  MO V NG
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          capability into deeper                                                                                                                                                                                                                        out
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           to be carried out                                                                                                                                                                                                                                     deeper water pipelines, for
                                                                                                                                                                                                                                                                                                                                                                                                                                                        safet ssing ilities onic co electrica
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         ,                                                                                                               remotely. Repairs                                effectively meant
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    waters. This
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      StatoilHydro has
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       designed                                            may have a

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             may be performed                                a total redesign                                                                                                                                                                                    as the Ormen Lange                   a system using technology
                                                                                                                                                                                                                                                                                                                                                                                                                                                               y va facilit includ ntrol
                                                                                                                                                                                                                                                                                                                                                                                                                                                                    lves.     ies
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          l                                                                                                              using a specially
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            designed Morgrip              and the developme                                                                                                                                                                                                                            gas                                                                                 applications
                                                                                                                                                                                                                                                                                                                                                                                                                                                     Last                          and ing the of                                                                                                                       mechanical connector                             PRS (RPRS). “The
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                nt of the emote                                                                                                                                                                                  pipeline, at up to
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    1000m.           and procedures
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      developed                                            boost requir
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         down tree,                                                                                                                                              clamp with                                     engineers at                                                                                                                                                                                                                         from the RPRS project,
                                                                                                                                                                                                                                                                                                                                                                                                                                                   one year, To                                 hole                                                                                                                    tensioners and graphite
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   seals. These
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         StatoilHydro were
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              faced with                                                                                                                                                                                         Once the technology                                         that                                          planned to c
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     can accomplish
                                                                                                                                                                                                                                                                                                                                                                                                                                                  aspir step clo tal came                                                                                                                                               are cost effective
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           for up to 28in-               number of new challenges a
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                procedures are proven,
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        and                          this.                                                  in 2010 usin
                                                                                                                                                                                                                                                                                                                                                                                                                                                 brougation whser to                                                                                                                                                   diameter pipelines,                                                              ,” said Neil
                                                                                                                                                                                                                                                                                                                                                                                                                                                                            this                                                                                                                                                              however larger             Woodward of Isotek
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                Electronics.                                                                                                                                                                                    however, it is a relatively                                                                                  Selection o
                                                                                                                                                                                                                                                                                                                                                                                                                                                field ht its          en                                                                                                                                                diameter connectors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                 K5 it                                                                                                                                                                         require higher                                                                                                                                                                                                                                   short step to use                                                                                            or a topsid
                                                                                                                                                                                                                                                                                                                                                                                                                                               the onstrea -F                                                                                                                                                          gripping capacities.                             Isotek was instrument                                                                                                                                                                                                                      them for
                                                                                                                                                                                                                                                                                                                                                                                                                                                    centr        m. At                                                                                                                                                 become prohibitivel
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              This solution can                                   al in developing                                                                                                                                                                              other subsea application                                                                                     place in 20
                                                                                                                                                                                                                                                                                                                                                                                                                                              deve          e of                                                                                                                                                                             y expensive. For           the original weld                                                                                                                                                                                                                                  s.
                                                                                                                                                                                                                                                                                                                                                                                                                                             Camelopme this                                                                                                                                                           diameters greater                                PRS and is responsible system for

                                                                                                                                                                                                                                                                                                                                                                                                                                                             nt                                                                                                                                                                            than around 28in                                                                                                                                                                                                                                  One such application

                                                                                                                                                                                                                                                                                                                                                                                                                                            world ronDC was                                                                                                                                                           dry hyperbaric welding                           the control systems          for many of                                                                                                                                                                                                      is
                                                                                                                                                                                                                                                                                                                                                                                                                                           electr ’s first , the                                                                                                                                                       competitive.              becomes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      Neil Woodward is
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              in the new design.                                                                                                                                                                             the remote hot tap.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  In                                                                                                    S
                                                                                                                                                                                                                                                                                                                          Subsea 7 in Westhill                                                                                            produ ic subs all-                                                                                                                                                                                                          Cranfield University,
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            currently based at                                                                                                                                                                              some new field                                                                                                  UT2 MAY
                                                                                                                                                                                                                                                                                                                                                                                                                                         syste ction ea                                                                                                                                                               The PRS was originally                                                   developing weld                                                                                                                                                                              developments, it

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                Subsea SO
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      procedures using
                                                                                                                                                                                                                                                                                                                                                                                                                                        impo m. An                                                                                                                                                                                              developed by                               the world’s deepest                                                                                                                                                                              more cost
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      Statoil and Norsk                               hyperbaric test chamber.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         Hydro for pipeline
                                                                                                                                                                                                                                                                                                                                                                                                                                      of the rtant pa                                                                                                                                                                                                                                                                                                                                                                                                                                       effective to tee
                                Acergy’s new building
                                                                                                                                                                                                                                                           Subsea 7                                                                       a                                                                                          betw contr rt
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     repair with the aid
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          of divers. First used
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     in 1988, it is currently
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           into existing lines
                                                                                                                    Technip                                                                                                                                    The new Subsea 7 facility
                                                                                                                                                                                                                                                                                           in Westhill         Working areas include
                                                                                                                                                                                                                                                                                                               combination of open-plan
                                                                                                                                                                                                                                                                                                                                              floor                                                                                  and een To t
                                                                                                                                                                                                                                                                                                                                                                                                                                                   tal                                                                                                                                                               Technip.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              operated by             “The new system
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        will be operated
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     beyond diver depths.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           rather than lay a
                                                                                                                                                                                                                                                                                                                                                                                                                                   was Cameron                                                                                                                                                                                                                                               The process                                                                                                                                                                                  dedicated export
  Acergy                                                The 17-acre site features
                                                                                     a modern                       Technip, has signed a three-
                                                                                                                    year lease for a second
                                                                                                                                                                                                                                                               covers an area of approximately a
                                                                                                                                                                                                                                                               17 300m (186 000 ft ),
                                                                                                                                                                                                                                                                         2            2 comprising             space and cellular offices
                                                                                                                                                                                                                                                                                                                                               with an
                                                                                                                                                                                                                                                                                                                                             all floors                                                                            6-m a chall
                                                                                                                                                                                                                                                                                                                                                                                                                                       on        en                                                                                                                                                                  The PRS system
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     therefore, has to
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     StatoilHydro have
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       be totally automated
  Acergy has officially moved
                              in to its                                           levels                                                                                                                                                                                                 wing in each          even distribution across                                                                                          goal th rel ging                                                                                                                                                                                        consists of a pair                             gained a lot of                                                                                                                                                                                                                                     Large diameter,
                                                        office building on three                                     located near to its UK head-                                                                                                               central core area and a                                                        points                                                                                            iabilit                                                                                                                                                              H-frames to align                      of       experience in subsea                                                                                                                                                                                                                                                   diverless hot tap
  new, bespoke, multi-million-p
                                ound                                                    area,                                                                                                                                                                                           east and west.         of meeting rooms, coffee                                                                                         electr for the          y                                                                                                                                                                                the pipe and a                                     orbital V-Butt TIG                                                                                                                                                                                                                                                tool
                                                        and an extensive workshop                                   quarters in Westhill. The
                                                                                                                                               com-                                                                                                            direction, north, south,                                                           suite                                                                        outpe ic systeall-
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     habitat incorporati                             welding over many
  campus in the Westhill
                         Business Park                                                yard.                                                   space to                                                                                                                                   ground floor            and toilet facilities. A visitor                                                                                                                                                                                                                                                                                        ng fine alignment                                 years.
                                                        complete with an external                                                                                                                                                                               The building includes a
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    clamps, machining,
   on the outskirts of Aberdeen.                        The office design centres
                                                                                                                     pany requires the extra
                                                                                                                     provide enhanced facilities
                                                                                                                                                                                                                                                                plus three upper levels
                                                                                                                                                                                                                                                                                         which can              is available to provide clients
                                                                                                                                                                                                                                                                                                                privacy and the facility of
                                                                                                                                                                                                                                                                                                                                                     with                                                                     pre-derform m. It
                                                                                                                                                                                                                                                                                                                                                                                                                             a co termi this
                                                                                                                                                                                                                                                                                                                                                                                                                                            ed                                                                                                                                                                      magnetisation, welding
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    destructive testing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           pre-heat, de-
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              and non-
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    “About ten years
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      ago, researchers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          The chamber of secrets
                                                         two impressive glass atriuma                                its 800-strong workforce.
                                                                                                                                                 The                                                                                                                            up to 1200 occupants.                                          own                                                                                nside ned                                                                                                                                                                                              (NDT) equipment            at Cranfield demonstra
   While 600 staff have made
                              the                                                   bar located                                                 32’, is
                                                                                                                                                                                                                                                                accommodate                                      remote contact with their                                                                                               rable targe                                                                                                                                                                The habitat lowered                     .      welding could be         ted that MIG                                                                                                                                                                                  Cranfield University
                                                         a restaurant and coffee                                     building, entitled ‘Aspect                                                                                                                                                                                                  building                                                                                      margi t by                                                                                                                                                                                  over the pipe uses                                                                                                                                                                                                                                                  has
   move from the company’s
                             previous                                              building.                                                                                                                                                                                                                     offices. The interior of the                                                                                                                                                                                                                                                                       an oxygen/helium                                depths of 2500m,”
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      used even at                                                                                                                                                                                        world’s highest pressure the            that MIG welding
                                                         within the ‘heart’ of the                                            built office located at                                                                                                            Car parking and building
                                                                                                                                                                                                                                                                                             access                                           a high level                                                                                             n.                                                                                                                                                                              mix to displace the                             said Woodward.                                                                                                                                                                                                                                                could be
   base at Bucksburn, Aberdeen,
                                  the                                                                                 a newly
                                                                                                                                                                                                                                                                                              while the          has been designed with                                                                                                                                                                                                                                                                            water. The divers                               StatoilHydro looked                                                                                                                      Above: The remote                                                            hyperbaric welding                       carried out at such
                             to 800                                                                                   Arnhall Business Park.                                                                                                                    is at the north of the site,                      of temperature comfort
                                                                                                                                                                                                                                                                                                                                             and noise                                                                                                                                                                                                                                                                                are lowered in a
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         bell                           upon
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   as a suitable replaceme this process
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                pipeline repair system
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         chamber. The 18t
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              test               Work is presently
   new facility can house up                                                           company                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     and enter the habitat                                                                                                                                                                   Stavanger. Above                              being tested in                                                                             underway
                                                          Acergy is the first subsea                                                                                                                                                                             south side   of the building features                                                                                                                                                                                                                                                                                                                                      to
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   necessary operationa carry out all                                       nt for deep-                                                                                                   Left: The remotely
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               inset: The sleeve
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  over the pipe connection               able to simulate
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             vessel is           to qualify the weld
   employees. Since the construction                      in Scotland to have its own
                                                                                                                      Technip’s UK headquarters
                                                                                                                                                                                                                                                                 landscaped grounds including
                                                                                                                                                                                                                                                                                                     an open- abatement.                                                                                                                                                                                                                                                                                                                   l work.                 water weld repair.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           uses MIG welding
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               operated welding
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  tool (ROWT) weld                                         pressures
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 and metallurgical
                          late 2006, a                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   equivalent to 2500m
   contract was signed in                                 complex for the full use
                                                                                    of its
                                                                                                                      significantly extended in
                                                                                                                                                 2004.                                                                                                                                            is largely                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          head which                               subsea.                              properties
                              increased                                                                                                                                                                                                                          air dining area. The building                    The heating/cooling solution
                                                                                                                                                                                                                                                                                                                                                      is                                               26                                                                                                                                                                                                         The system also                                  One of the most                                                                                                                         All figures are reproduced                                                    It was with this 250bar                 necessary for working
   recruitment campaign has                                employees and families.
                                                                                      They can
                                                                                                                      However, due to the company’s
                                                                                                                                                                                                                                                                                                   with silver                                                                                                                                                                                                                                                                                                                       incorporates a                                 difficult aspects of                                                                                                                                                                                 that it was first proved vessel
                                                                                                                                                                                                                                                                  composed of curtain walling                                                          system                                                                                                                                                                                                                                                                                                                                                                                                                                                                          with kind permission                                                                     these extreme hyperbaric
                                                                                                                                                                                                                                                                                                                  delivered by a ‘chilled beam’
                              by 25%.                                                                                                                                                                                                                                                                                                                                                                                UT 2                                                                                                                                                                                         concrete removal                                subsea V-Butt repair                                                                                                                                                                       of StatoilHydro.
    the company’s headcount                                                                courts,                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    machine and a                                                                   from the equation
                                                           enjoy the use of two squash                                investment in new assets
                                                                                                                                                                                                                                                                  anodised aluminium and
                                                                                                                                                                                                                                                                                               clear anti-sun                                        as the                                                                 AU                                                                                                                                                                                   device for machining                                                    welding is to                                    was deemed to be                                                                                                                                                                      conditions.
                                                                                            room                                                                                                                                                                                                 solar glare       which is currently regarded                                                                                GU                                                                                                                                                                                                         the pipe, ensuring       physically bring the                               technically difficult,”                    too
                                         with              a multipurpose gym, weights                                 the growth of the UK project                                                                                                               glass, designed to reduce                                                             d                                                                       ST 20                                                                                                                                                                            the pipe ends are                                ensure ovality and
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       pipes together and                                   said Neil Woodward                                            deepwater operation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              with a comparativ
    The campus has been constructed                             games hall capable of hosting
                                                                                                   a                                            recog-                                                                                                                                       It has a glass        best option for zone-controlle                                                                                    09                                                                                                                                                                                               clean to form a                                 concentricity for              It was this that made                        .                                       rate.                                ely high deposition                                                                      250bar hyperbaric
                               incorporating               and                                                         business, the company                                                                                                                      and reject excess heat.                          comfort. The complex offers
                                                                                                                                                                                                                                                                                                                                                       the                                                                                                                                                                                                                                                       V-butt joint. Inside
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      the habitat,                necessary for V-Butt                               engineers look at
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             the StatoilHydro
    the environment in mind,                               five-a-side football tournament a
                                                                                                                       nised that steps were needed
                                                                                                                                                                                                                                                                                                  to west                                                                                                                                                                                                                                                                                                                                                                               welding.                                         alternative solutions.                                                                                                                                                                         chamber at Cranfi
                                    include                                                                                                                                                                                                                        atrium feature running east                     opportunity for expansion
                                                                                                                                                                                                                                                                                                                                                   in line with                                                                                                                                                                                                                                                 the pipe ends are
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     brought                                                                         The one they selected                                                                                                                                                                                                               eld
    energy saving features which                            aerobic classes. As the hall has                            to ensure it continued to offer a                                                                                                                           and has a high rating                                                                                                                                                                                                                                                                                                       together. Pipe alignment                                                                                                      was a sleeve.                                              “Once the TIG welding
                              sensitive                                                    it will                                                                                                                     Technip’s Active 32 building                along the spine                                 future business growth.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       “This is achievable                                                                                                               depth, the welding         process reaches
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    700m water
     daylight and movement                                  significant seating capacity,                                high standard of office accom-
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           with the aid
                                   harvesting,                                                                                                                                                                                                                     on environmental efficiency.                                                                                                                                                                                                                                                                                                                                                                           of divers. Removing                        “This has the fundament                                                                                    arc becomes quite
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 unusable as it loses
     lighting controls, gray water
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         directional stability”
                                    and a                   also be used for all staff meetings                         modation.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   being much more             al advantage of                                                                  concluded Woodward
     passive chilled beam cooling                           and company events.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    ends are slightly
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        forgiving if the pipes                                                                                       .
                               system.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                out of alignment.
      geothermal heat source                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       sleeve can allow                       The                                                                                                 Left:The remote
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      for that.”
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             operated welding
                                                                                                                                                                                                                                                                 PSS/Sub-Atlantic                                    training for both
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  A sleeve jacking
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    unit is used to
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           tool on a 42in pipe

                                                                                            Saab Seaeye                                                                                                                                                           Sub-Atlantic has formally
                                                                                                                                                                                                                                                                                             opened its
                                                                                                                                                                                                                                                                                                                     novice and
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  slide the sleeve into
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        its correct place
      SMD                                                         on                        Global success for Saab
                                                                                                                    Seaeye has led the company
                                                                                                                                                                                                                                                                  new Houston facility. The 2
                                                                                                                                                                                                                                                                                             new sales and
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  where it is secured
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  at each end of the
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       by a fillet weld
                                new £1.75m office development                                                               by 50% with the opening                                                                                                                service centre offers 5000ft                        pilots,                                                                                                                                                                                                                                                                                                                                                                                                         sleeve.
      SMD has moved into a                                                                  expand its production capacity                                                                                                                                                                       It is
                                             and assembly facility.                                                   in Fareham, Hampshire.                                                                                                                      office and workshop space.                           technicians and
                                                                                            of a new 24 000ft factory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 “MIG welding is ideally
      the site of its Turbinia manufacturing                                                                                                                                                                                                                                                           to gain
                                                                                                                                                                                                                                                                  designed to allow the company                       engineers.                                                                                                                                                                                                                                                                                                                                                                                 sleeve on pipe fillet      suited for the
                                                             has                                                      Grant, said that the greater                                                                                                                                            by providing                                                                                                                                                                                                                                                                                                                                                                                                                             welding repair
                                  Hodgson commented, “It                                     Managing director, Dave
                                                                                                                                                                                                                                                                   access to the US market                                                                                                                                                                                                                                                                                                                                                                                                                       application since
      SMD’s new CEO Andrew                                                                                              production capability will
                                                                                                                                                                                                                                                                                                       to                                                                                                                                                                                                                                                                                                                                                                                                                          it is capable of
                                        of mine to house all of our                                                                                                                                                                                                full technical and sales support                   The simulators
       been a long-standing ambition                                                         engineering, technical and                                                                                                                                                                       including                                                                                                                                                                                                                                                                                                                                                                                                          Left; the pipeline
                                    site.                                                    help meet the growing
                                                                                                                    demand for the company’s                                                                                                                       existing and new clients,                          use the same                                                                                                                                                                                                                                                                       42                                                                                                                           repair system (PRS)
       135 employees on a single                                                                                                                                                                                                                                                             of major electric
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              UT2 MARCH 2009
                                                                                             range of underwater vehicles.                                                                                                                                         extensive stock holding                            hardware
                                     £2.75m re-developing the                                                                                                                                                                                                       and hydraulic ROV components.                     as used in
        “In total, we have invested                            have                                                          been integrated into the
                                  the new main office, we                                      Custom-built facilities have                                                                                                                                                                                            the field, so                                    in Houston
        Turbinia site. As well as                                                                                                                                                                                                                                                                Systems                                  Sub-Atlantic’s new facility
                                         hall and added a new stores                                                    production cells and dedicated                                                                                                              It is part of Perry Slingsby                       beginners
        improved the main assembly                                                            new building, including                                                                                                                                                                            and support
                                     production office, a new
                                                                 canteen                                                    ample onsite space for                                                                                                                  (PSS) $2 000 000 training                          can become
         building, a new client and                                                           test areas. This comprises                                                                                                                                                                       opened last
                                   ce, a modern training facility
                                                                    with                                                 containers and launch and                                                                                                                  facility in Houston which                          accustomed to the control
         and support services offi                                                             customer-ready control                                ROV                                                                                                                                        000ft2 complex                                         and                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         UT2 MARCH 2009

                                    test facility. This forms an
                                                                  impor-                                                  into the factory for final                                                                                                                  year. Altogether, the 20                          placement, vehicle reactions                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  43
         a simulator and new wet                                                              recovery systems linked
                                                    t of the banks of the                                                    significantly improved                                                                                                                   includes a deepwater education and                control system diagnostics
         tant part of the general redevelopmen for subsea and                                  integration. The move has                     three                                                                                                                                             simulation
                           a centre of excellence                                                            efficiency by bringing together                                                                                                                          centre offering full ROV                           the necessity of going offshore.
          Tyne to become                                                                       production


                                                                                                different sites under one
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             The use of arc welding is                                                                                                                U N D E RWAT E RW E L D I N G
          marine technology.”
                                                                                               Saab Seaeye’s building
                                                                                                                             in Hampshire
                                                                                                                                                                                                                                                                                                                        The two companies share
                                                                                                                                                                                                                                                                                                                        storage facility, which can
                                                                                                                                                                                                                                                                                                                                                    a central
                                                                                                                                                                                                                                                                                                                                                    be fully
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             ubiquitous in the subsea
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            Cold Tee

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                Th e Lo s t A rc
                                                                                                                                                                                                                                                                                                                          stocked with spare parts.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         When discovering a new field, it is often        conditions for extended periods, for
                                                                                                                                                                                                                                                                                                                                                                                                                                                                  Sideascan Family                                                                                                                                                           industry, accounting for virtually                                                                                                                                                                                                             more cost effective to tie it into existing     SGGT only qualified mechanical
                                                                                                                                                                                                                  Inside Saab Seaeye’s building                                                                                                        will                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 infrastructure rather than lay its own          construction divers without any welding
                                                                                                                                                                                                                                                                                                                            Meanwhile, Sub-Atlantic                                                                                                                                                                                                                                                                                          all the underwater welding
                                                                                                                                                                                                                                                 is also                                                                                                                                                                                                          Tritech International has launched a                  The advanced 150kHz composite                                                                                                                                                                                                                                                                                                                                        bespoke pipeline. This would involve           skills are required.
                                                                                                                                                                                                                  A dedicated training facility                                                                             double its facility in Aberdeen

                                                                                                                                                                                                                                                                                                                                                                                                                                                                  new comprehensive range of sonar                      transducer assembly provides
                                                                                                                                   SUBSEA                                                                         located at the factory. It
                                                                                                                                                                                                                                             will enhance                                                                    without the interruption
                                                                                                                                                                                                                                                                                                                                                                                                                                                                  systems that have been tailored to                    superior image quality and long range.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             being carried out. There is,                                                                                                                                                                                                                       retrofitting a tee piece.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             “The subsea grouted tee offers
                                                                                                                                                                                                                  the existing training package
                                                                                                                                                                                                                                                    for                                                                       actually moving. It will expand

                                                                                                                                                                                                                                                world and                                                                    into the building next door!
                                                                                                                                                                                                                                                                                                                                                                                                                                                                  cover a wide variety of requirements,                                                                                                                                      however, considerable scope for                                                                                                                                                                                                                           One way to do this is to stop        many advantages over the welded
                                                                                                                                                                                                                   operators from across the                                                                                                                                                                                                                      from shallow depth imaging to seeing                  The SK150’s simple, modular design                                                                                                                                                                                                                                                                                                                                             production, cut into the line,       counterparts, not only in safety, but
                                                                                                                                                                                                                   offer technical training in
                                                                                                                                                                                                                                               the operation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                  in far deeper conditions.                             provides increased reliability and                                                                                   alternative technologies that                                                                                                                                                                                                                              insert and connect the tee          also in cost, instances of application
                                                                                                                                                                                                                   and maintenance of Saab                                                                                                                                                                                                                                                                              facilitates quick in-field repairs         SeaKing Towfish SK150 DST
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             boast a number of competitive                                                                                                                                                                                                                               piece and resume the flow.          and duration of installation,” said Dan
                                                                                                                                                                                                                                                  and work-                                                                   Inside the new facility
                                                                                                                                                                                                                   complete range of portable                                                                                                                                                                                                                     Building on the success of the                        should any damage occur during                                                                                                                                        specified by modern technical                                The machine is hydraulically                                                                                                                    Another layer of difficulty        Vu, grouted tee creator and once JIP
                                                                                                                                                                                                                   class  vehicles.                                                                                                                                                                                                                               advanced sidescan sonar systems                       operation. All electronics are located                                                                               advantages.                                      designers. The process is also self-                        powered and computer controlled.                                          Left: The                                                             would be to install the tee       manager, now working for Subsea 7.
                                                                                                                                                                                         n in 1917.                                                                                                                                                                                                                                                               Tritech completes the family with                     in a single subsea pressure housing         laptops and PCs with Tritech                                                                                              cleaning, with no requirement for                           On-screen displays show the weld                                          friction stud                                                           while the line is flowing
                                            SMD’s building on the Turbinia
                                                                                  site                                                                                        The Danto                al de la
                                                                                                                                                                              courtesy of
                                                                                                                                                                                          musée nation
                                                                                                                                                                                                                                                                                                                              UT  2   DECEMBER 2008                          7                                                                                    the next generation model SeaKing                     isolated from the rest of the towfish.      Seanet Pro software installed.                                           One niche welding technique is                   surface preparation.                                        parameters in real time. An in-                                           welding                                                                 – the so-called hot tap         Not requiring a subsea welding habitat
                                                                                                                                                                                                                                                                                                                                                                                                                                                                  Towfish SK150 DST, the largest in                                                                                                                                          friction stud welding. This is a solid                                                                       process proof tensile test can be                                         machine                                                                  method.                        means total offshore deployment time is
                                                                                                                                                                              Marine                                                                                                                                                                                                                                                                              the family. Specifically designed                     The low cost, stabilising fins can          In addition to the display of                                            phase process where the stud is                  Typical applications include welding                        carried out on each weld providing                                        placing studs                                                                                           reduced, which subsequently reduces
                                                                                                                                                                                                                                                                                                                                                                                                                                                                  to fly at depths of up to 250m,                       be easily replaced if damaged,              sidescan sonar data, the system                                          rotated at high speed and forced                 to live gas and oil lines for CP                            full QA/QC traceability.                                                  on a pipeline                                                                                           diving support vessel costs.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            Both methods involve
                                                                                                                                                                                                                                                                                                                                                                                                                                                                  the SK150 can be used for high                        and a simple sheer and recovery             will take position input from GPS.                                       against the parent material under                (cathodic protection) attachments.                                                                                                    Right: The
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            subsea hyperbaric
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    This information is recorded along                                       controlled conditions. The frictional            This would give lower electrical                            One deepwater                                                             subsea tee
                                                                                                                                                                                                                                                                                                                                                                                                                                                                  resolution surveys at depths other                    mechanism is provided in the event                                                                                                                                                                                                                                                                                                                                                  welding, which are              The conversion from the land-based
                                                                                                                                                                                                                                                                                                                                                                                                                                                                  lighter systems can’t reach.                          of the SK150 becoming snagged.              with the sonar data to allow a ‘fix’                                     temperatures remain well below the               resistance than a clamp in long-                            application that                                                                                                                                both time consuming and           grouted tee to SSGT was performed
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    on a target.                                                             melting point of the metal, but are              term service. It can also be used in                        Proserv carried out                                                                                                                            expensive.                         on a 24in stopple branch off a 24in
                                                                                                                                                                                                                                                                                                                                                                                                                                                             The SK150 combines the very                                As part of the Tritech SeaKing suite                                                                                 enough to plasticise in the region               damage control, salvage, hot-tapping                        was mounting a large                                                                                                                                                              pipeline with ANSI Class 900 flange
                                                                                                                                                                                                                                                                                                                                                                                                                                                             latest Tritech DST (digital sonar                          of survey sensors, it is possible to        The post processing export facility                                      of contact. The stud rotation is then            and constructional applications                             unit on the front of                                                                                                                     When tees are retrofitted to              connection for diver depth operations
                                                                                                                                                                                                                                                                                                                                                                                                                                                             technology) electronics with industry                      run the SK150 with other SeaKing            will convert the logged data to                                          stopped and downward force is                    where weld integrity is of paramount                        an ROV. A                                                                                                                             pipelines on land, one common               (200m maximum).
                                                                                                                                                                                                                                                                                                                                                                                                                                                             leading transducer design and                              sensors over one communication link.        XTF and CSV formats for third                                            maintained to consolidate the joint              importance. It can be carried out in                        series of                                                                                                                            method is the grouted hot tap
                                                                                                                                                                                                                                                                                                                                                                                                          .                                                  digital CHIRP signal processing                                                                        party software packages. The                                             and produce a forged weld.                       explosive environments or zoned                             welds were                                                                                                                         system. This consists of a bolted              It was designed with a split lower half
                                                                                                                                                                                                                                                                                                                                                                                         and wreck detail
                                                                                                                                                                                                                                                                                                                                                               reveals seabed topography       the survey                                                    techniques to dramatically improve                         The SeaKing Towfish SK150 DST               SK150 is also fully compatible with                                                                                       areas where normal electric arc                             carried out                                                                                                                       shell containing the tee piece, which is        shell. The door arrangement permits
                                                                                                                                                                                                                                                                                                                                      Multibeam data processing Right: The ROV used to perform                                                               range resolution and generate sonar                        may be connected to a Seanet SCU            all Kiltec and Easyreeling electric                                      Friction stud welding is usually                 welding is not permitted.                                   to attach                                                                            a tapered hole in the anode                  lowered onto the pipeline.                      it to be deployed to the seabed
                                                                                                                                                                                                                                                                                                                                                                                                                                                             images of unprecedented clarity.                           surface control, or most standard           winches.                                                                 carried out in normal ambient                                                                                anode                                                                                continuity connector and onto                                                                symmetrically using a soft landing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             conditions, but works equally well in            Importantly for subsea applications,                        continuity                                                                           the pile, all in one action.                 The outer surface of the main carrier           support frame.
                                                                                                                                                                                                                                                                                                                                                                                                                                                           Fugro took
                                                                                                                                                                                                                                                                                                                                                                                                                      At the close  of the AUV survey,                                                                                                                                                                                       hazardous environments and under                 the system does not have depth                              tails to                                                                                                                          pipe and the inner surface of the shells
                                                                                                                                                                                                                                                                                                                                                                                                                                            acquire more detailed

                                                                                                                                                                                                                                                                                                                                                                                                                      the opportunity to                                                                                                                                                                                                     water.                                           limitations, which means that it is                         36in subsea                                                                          In another application in the

                                                                                                                                                                                                          Re di sc over in g th e Da nt
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            are grit blasted, and an epoxy grout is          The hydraulic piston-operated split
                                                                                                                                                                                                                                                                                                                                                                                                                                                        by launching
                                                                                                                                                                                                                                                                                                                                                                                                                      information   about the wreck
                                                                                                                                                                                                                                                                                                                                                                                                                                                part of the SkandiSaab AST                                                                                                                                                                   Until 25 years ago, the process
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              potentially useful for deepwater work.                      riser base
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          piles west of
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               Gulf of Mexico, it was used
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               to attach 119 stainless steel
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            then injected to fill the void between           doors close the shell, wrapping it
                                                                                                                                                                                                                                                                                                                                                                                                                       the ROV that formed                capabilities.                                                                                          30 guests from 10 countries with
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            the tee and the pipeline underneath.            around the main pipeline. High tensile
                                                                                                                                                                                                                                                                                                                                                                                                                       Inspector’s  subsea inspection Applied Signal Technology (AST)                                   and MacArtney’s FOCUS-2 remotely                                                                                     normally involved large machinery                The compressive forces exerted                              Shetland.                                                                            studs to a 24in pipeline for the             The grout has extremely low shrinkage           strength bolts on horizontal flanges
                                                                                                                                                                                                                                                                                                                                                                                                                                                             recently participated in a live                                                                     representatives from the defence and                                        and was confined to a workshop.                   during the welding process, and the                                                                                                              attachment of anode continuity
                                                                                                                                                               46.6m-long                                                                                                                                                                                                                                                                                                                                               operated tow vehicle (ROTV).                                                                                                                                                                                                                                                                                                                                        properties so the load is transferred           compress the main primary saddle seal
                                                                                                                                          In March 1917, the                                                                                                                                                                                                                                                                                               launched to
                                                                                                                                                                                                                                                                                                                                                                                                                                    Triton XL ROV was demonstration of its PROSAS Surveyor
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 offshore oil exploration communities.                                       It was not until a portable system               fact that it is a solid phase system                        The welds                                                                            tails.                                       from the main to outer shell.                   onto the main pipeline.
                                                                                                                                                              built in Brest,                                                                                                                                                                                                                                           The Fugro                                      r
                                                                                                                                          battleship Danton,                                                                                                                                                                                                                                                                                      collect underwate aperture sonar (SAS) system
                                                                                                                                                                                                                                                                                                                                                                                                                                                             synthetic                                                                                                                                                                       was developed and tested in Loch                 with no liquid phase at any time,                           were
                                                                                                                                                                en route to Corfu                                                                                                                                                                                                                                       re-examine the vessel,
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        For this demonstration, PROSAS
                                                                                                                                           sailed out of Toulon                                                                                                                                                                                                                                                                               conduct a very high a launch of Saab Underwater
                                                                                                                                                                                                                                                                                                                                                                                                                                                             during                                                                                              As participants were briefed on the                                         Linnhe in Scotland that friction                 means that grain growth is avoided.                         performed at                                                                                                                                                                      Built-in sealing strips on the horizontal
                                                                                                                                                                   forces. Around                                                                                                                                                                                            Both sonar and multi-beam of               video footage and
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        Surveyor was integrated onto the                                                                                                                                                                                                                                                                                                                                    This resulted in a joint industry
                                                                                                                                           to rejoin French naval as well                                                                                                                                                                           resolution multi-                             the bow                                        survey of the wreck new underwater vehicle,
                                                                                                                                                                                                                                                                                                                                                                                                                                                             Systems’                                                   Double Eagle SAROV, a unique
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 new system aboard the                                                       stud welding started to become a                 The grain structure is refined, often                        a depth of 395m. These                                                                                                            research project carried out by                 flanges of the doors have O-rings that
                                                                                                                                                                                                                                                                                                                                  acquire very high                          data revealed that                          resolution multibeam
                                                                                                                                           946 officers and sailors, aboard.                                                                                                  later, Fugro’s                                                             side scan sonar                             proud of                                    data was processed Eagle semi-autonomous
                                                                                                                                                                                                                                                                                                                                                                                                                                                             the Double                                                 hybrid underwater vehicle that can
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 S/S Motala Express, the Double                                              useful tool for subsea purposes.                 resulting in better weld properties                         consisted of welding a                                                                                                            Advantica and Subsea 7 on behalf                provide a gas-tight environment in the
                                                                                                                                                              s were                                                                                    round ninety years                                                        beam echo sounder,                         the wreck was tilted                        site. The multibeam                       ship                                                                                          Eagle SAROV and PROSAS
                                                                                                                                            as 155 passenger                                                                                                                                                                                           ler data to aid                                                                         3D models of the
                                                                                                                                                                                                                                                                                                                                                                                                                                                             remotely operated vehicle (SAROV).                                                                                                                                              Since then, the system has been                  than the parent material. Hardness                          tapered stud through                                                                                                                                                              annulus, enabling water to be flushed

                                                                                                                                                                                                                                                                                                                                                                                                    estimated                                                                                                           be operated as either an AUV or as                                                                                                                                                                                                                                                                                                                                  of JIP sponsors (BP, Total and
                                                                                                                                                               submarine patrols,                                        after 30–35 mins.               MV Geo Prospecto
                                                                                                                                                                                                                                                                             r was                                                and sub-bottom profi                        the sea-bed with an                          to construct digital                    took a                                                                                         Surveyor performed a pre-
                                                                                                                                            Advised of enemy                                     and the ship capsized                                                                                                                                g.                                         These records                                 g seabed. It also                                                        a ROTV. From a single configuration                                                                                   progressively refined.                            levels can be controlled within limits,                                                                                                                                                       ConocoPhillips) to develop the sub              out by flowing nitrogen when the end
                                                                                                                                                              Captain Delage,                                                                            carrying out detailed
                                                                                                                                                                                                                                                                                marine                                            pipeline engineerin                         elevation of 15m.                           and the surroundin                                                                                                                     programmed, two-hour mission on
                                                                                                                                            her commander,                                                                                                                                                                                                                                         the seabed                                    hic images. PROSAS Surveyor is a real-time, ultra                      and platform, PROSAS Surveyor                                                                                                                                         by adjusting the welding parameters.                                                                                                                                                          seagrouted tee (SSGT).                          seals are activated.
                                                                                                                                                                    of Sardinia.                                     to launch the lifeboats,                        for routing the                                                                                          also indicated that                          number of photograp                                                                                                                   Lake Vattern and presented sonar
                                                                                                                                            took the Danton west                                 It was impossible                                survey operations                                                                                   interpreting this                           was very                                                   high resolution synthetic aperture sonar                   simultaneously provided SAS,                                                                                         The technique has a number of
                                                                                                                                                                                                                                was out                                pipeline across the                                         It was only when                           around the wreck                                                                                                                                                                   data with 3cm x 3cm resolution over
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 Friction Stitch Welding
                                                                                                                                                                                                 as all electrical equipment                      proposed Galsi gas                                                                                     large wreck                               with numerous                                             system based on a modular design                           multibeam sidescan, and bathymetry                                                                                   inherent advantages. The weld time               Another advantage is that it is a                                                                                                                                                             This technique has significant potential         Spreader plates provide compression
                                                                                                                                                              west of the island                                             Massue and                                 ean Sea between                                            sonar data that the                        disturbed, littered                                                            and open architecture. The system                                                                   150m range per side. Images of                                               is very short, typically around 4               low-skill operation that a diver can be
                                                                                                                                            At 28 miles south                                     of action. The destroyer                        Southern Mediterran
                                                                                                                                                                                                                                                                                                                                    around 125m long
                                                                                                                                                                                                                                                                                                                                                        was uncovered                sonar contacts probably
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        from the same sensor.                                                                                                                                                                                                                    Friction stitch welding was developed to                                                                                   for use in both shallow, and deepwater          on the primary seal and saddle seal.
                                                                                                                                                               was suddenly                                             Marguerite and                                                                                                                                         small                                                                         has been successfully deployed onto                                                                 objects planted on the lake bottom                                                seconds for a 10mm-diameter                trained to use in a few hours onsite. It                                                                                                   Another use for the technique is for
                                                                                                                                            of San Pietro, she                                    the trawlers Louise                              Algeria and Sardinia.                                                                                area of disturbed                               the wreck.                                                                                                                                                                                                                                                                                                                                               repair cracks. Like friction stud, it is solid                                                                             diverless projects. Instead of highly           The material of the primary saddle seal
                                                                                                                                                                        in quick                                     to the rescue but
                                                                                                                                                                                                                                         296                                                                                        lying upright in an                        related to debris from                                                        a variety of underwater platforms,                                                                  were downloaded from an onboard                                                  stud. The weld quality is also              can be also used from ROVs.                                                                                                                joining components. The two pieces to                                                              can be selected to suit compatibility of
                                                                                                                                            attacked by two torpedoes                             Chauveau came                                                                                                                                         of water, close to                                                                                                                                              The two-day demonstration and                                                                                                                                                                                                            phase process.                                                                                                             skilled divers specialised in welding
                                                                                                                                                                 and mid-ships                                            or missing. Captain                         involved using                                                seabed in 1000m                              Continued next page                                                         including Hydroid’s REMUS 600                              workshop, held at Saab’s Motala,
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 recorder and viewed immediately                                                  consistently high. When tested                                                                                                                                                         be joined are held together, then holes            works under hazardous subsea                    the internal hydrocarbon products.
                                                                                                                                            succession, forward                                    were recorded dead                              Part of the survey       us underwater                                            the proposed pipeline
                                                                                                                                                                                                                                                                                                                                                             route.                                                                                                                                                                                              upon recovery of the vehicle.
                                                                                                                                                               submarine U-64.                                            bridge until the                                                                                                                                                                                                                   autonomous underwater vehicle (AUV)                        Sweden, facility, was attended by                                                                                         to destruction, The Welding                 Quench hardening can be a potential                                                                                                        can be drilled and friction welded along
                                                                                                                                             from the German                                       Delage clung to the         the officers and
                                                                                                                                                                                                                                                   employed its autonomo                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         A tapered or straight hole is drilled into
                                                                                                                                                                                                                            of                                          Surveyor 1 to                                                                                                                                                                                                                                                                                                                                                             Institute (TWI) says that failure           problem underwater. This is solved by                                                                                                      their joint line.
                                                                                                                                                                                                   end, and the majority                           vehicle (AUV) Echo                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            the centre of the crack. A plug is then                                                                                                                                                       The SSGT in a test tank
                                                                                                                                                                 the list began to                                                                                                                                                                                                                                                                                                                                                                                                                                                                invariably occurs in the stud               a foam shroud being placed around
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 friction welded into the hole. Excess
                                                                                                                                              After ten minutes,                                    marines perished.                                                                                                                                                                                                                                                                                                                                                                                                                             material and well away from the             the weld area. The shroud prevents
                                                                                                                                                                  first, then rapidly
                                                                                                                                                                                                                                                                                                                                      Multibeam Echosounder
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          Stitch welding: A hole is drilled into the
                                                                                                                                              increase, slowly at                                                                                                                                                                                                                             The SeaBat 8125                                                                                                                                                                                                                                     weld.                                       the weld being cooled too rapidly by
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 metal is removed and another hole is
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          fracture (2) and then friction welded (3);
                                                                                                                                                                                                                                                                                                                                                          was carried out by                  multibeam sonar                                                                                                                                                                                                                                                                                 the surrounding water.                                                                                                                      another hole is then drilled in the crack,
                                                                                                                                                                                                                                                 Echo Surveyor                                                                        Much of the imaging
                                                                                                                                                                                                                                                                                                                                                            wide-sector,                                                                                 The bow of the Danton                                                                                                                                                                   Another advantage is that                                                                                                                                                                overlapping the weld (4) and the friction
                                                                                                                                                                                                                                                                                         Fugro using its                              Reson’s SeaBat 8125                                                                                                                                                                                                                                                                                                                                                                                                        This is on the crack line, but overlaps
                                                                                                                                                                                                                                                                     was carried out by                                                                                                                                                                                                                                                                                                                                                          dissimilar metal combinations                A leading practitioner of friction stud                                                                                                     weld is repeated (5)
                                                                                                                                                                                                                                                 The pipeline survey                  able to carry out                               wide-band, focused
                                                                                                                                                                                                                                                                                                                                                          multibeam                                                                                                                                                                                                                                                                                                                                                                                              with the first weld. This hole is then
                                                                                                                                                                                                                                                                  AUV. This vehicle,                                                                                                                                                                                                                                                                                                                                                             can be joined. This means that               welding is Proserv Offshore, which
                                                                                                                                                                                                                                                 Echo Surveyor 1                                is based on                                                                                                                                                                                                                                                                                                                                                                                                                                                      friction welded as before. This process
                                                                                                                                                                                                                                                                     depths down to 3000m, a payload                                   sonar.                                                                                                                                                                                                                                                                                                    it is possible to weld exotic                has developed systems capable of
                                                                                                                                                                                                                                                 operations in water                         with                                                                                                                                                                                                                                                                                                                                                                                                                                                                continues until the crack is repaired.
                                                                                                                                                                                                                                                                         Hugin 3000 body,                                                                   ly focused
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  materials such as inconel,                  welding studs from as small as 3mm
                                                                                                                                                                                                                                                 a Kongsberg Maritime                       demands of                                 Using 240 dynamical                                                                                                                                                                                                                                                                                              titanium, duplex and                  diameter, up to 60mm-diameter tube.
                                                                                                                                                                                                                                                                    to meet its particular                                                                                                                                                                                                                                                                                                                                                                                                                                                                       This is a cost-effective way of repairing
                                                                                                                                                                                                                                                  selected by Fugro                           site surveys                             receive beams, the
                                                                                                                                                                                                                                                                        field developments,                                                                swath across the                                                                                        The hybrid SAROV                                      Trials in lake Vattern                      AST’s sonar                                                                            super-duplex stainless             The largest machine in the range is
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 expensive subsea components in-situ.
                                                                                                                                                                                                                                                  surveying deepwater            regional mapping.                                     measures a 120°                                                                                                                                                                                                                                                                                                      steels that are often             rated for a water depth of 1000m and
                                                                                                                                                                                                                                                  pipeline and cable routes and                                                                          the bottom and                                                                                                                                                                                                                                                                                                                                                                                          Stitch welding can be used for filling
                                                                                                                                                                                                                                                                                                                                        seafloor, detects                                                                                                                                                                                                                                                                                                                                      can be operated from a distance of up
                                                                                                                                                                                                                                                                                                                                                                ranges at                                                                                                                                                                                                                                                                                         A stud welded onto a                                                                           holes that were drilled in the wrong place
                                                                                                                                                                                                                                                                                  dive endurance at                                     delivers the measured                                                                                                                                                                                                                                                                                                                                 to 4km.
                                                                                                                                                                                                                                                   The vehicle has a 60–70 hour            includes a                                                      of                                                                                                                                                                                                         UT2 DECEMBER 2008                       37                                                  metal plate                                                                                    or have become redundant.
                                                                                                                                                                                                                                                                    of 4kts. The payload                                                a depth resolution                                                                                                                                                                                                                                                                                                                                                                                                                                                                                1          2       3        4          5
                                                                                                                                                                                                                                                   a nominal speed                             sub-bottom
                                                                                                                                                                                                                                                                         er, sidescan sonar,                                             6mm.
                                                                                                                                                                                                                                                   multibeam echosound ty, temperature and depth                                                                                                                                                                    The twin cannons
                                                                                                                                                                                                                                                   profiler and a conductivi                                                              The backscatter intensity                                                                                                                                                                                                                                                            40            UT2 MARCH 2009                                                                                                                                                                                                                                                                                                       UT2 MARCH 2009
                                                                                                                                                                                                                                                   (CTD) sensor.                                                                                            in real                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                41
                                                                                                                                                                                                                                                                                                                                         image is displayed
                                                                                                                                                                                                                                                                                                                                         time on the sonar
                                                                                                                                                                                                                                                                           images of the Danton                                                                                                                                                                                                     27
                                                                                                                                                                                                                      aboard the                   All video and multibeam Fugro NV                                                                                                                                                                                 UT2 MAY 2009
                                                                                                                                                                                                    The Echo Surveyor                                                SpA and
                                                                                                                                                                                                                                                   courtesy of Galsi
                                                                                                                                                                                                    MV Geo Prospector

                                                                                                                                               UT2 MAY 2009
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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   This light operating conditions.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         in turbid             s, at great               s. At                               with an intens             costs                                                                                                                                                                                      sensitivity
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       water condi er depths and                                                                 ified came                                                                                                                                                                        advantage                        performan
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        the lack
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       of light oftentions, however,                      Another
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 ra.                                                                                                                                                              water condiis even greater                       ce
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       general                                                                                                                                                                                                                                                                                                      tions (eg              in turbid
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      navigation affects the                             robustness                     proble
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           . Some peopl m was
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 coastal water                    estuarial
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       vehicle to                     of                                                                                                                                                                                                                                                                               s), where
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        the targe the underwater                        the SIT becau                          e
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               se the techn used to deride
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                can be an
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 order of            the OE13
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     t.                                 based on                                                                                                                                                                                                                sensitive                     magnitude
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     In the early                                                                       a glass vacuu ology was                                                                                                                                                                                               than even                        more light
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       used to asser                         m tube. Many                                                                                                                                                                                                      SIT techn
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     began to             1980s, the                                                         t that for                                                                                                                                                                                                                                      ology.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     look                 industry                    SIT came                             this reaso                                                                                                                                                                          One comm
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    Target (SIT) at Silicon Inten first                                                ra
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      enough for was inherently not n, the                                                                                                                                                                                    is advan on innovation in
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  sifi                                                                                                                                                                                                                                                      ced image                     recen
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    which soon camera technology er                                                     extreme
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      subsea use.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      robust                                                                                                                                                                 can great                      processing t years
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   long-range became the mains ,                                     ‘This was                                                                                                                                                                                                              perceived improve the contr that
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   navigation underwater viewi tay of                                Mackay.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     simply not
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       true,’ said                                                                                                                                                                          “Generally
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             definition                    ast
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            of an image and
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     operations.               ng and                              ‘The                              Dave                                                                                                                                                                                   , it is not                       .
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    the US milita SIT was devel                                                                                                                                                                                            to produ
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        ce a low really possible
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  SIT was                                                                                ry and                 oped for                                                                                                                                                                  as the electr                light HD
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   100G of
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 originally                                                       shock, so could withstand                                                                                                                                                                                                   onics sacrifi camera

                                                                                                               2) Files up to 5 Mb can be sent to
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  military for                  developed                         problem.                        robustness                                                                                                                                                                              definition                             ce
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               by                                                                                                                                                                                                                                                        for light
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 the Vietn night-time visualisatio the                                                                             wasn’t a                                                                                                                                                              are mutu                      sensitivity
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                am war                                                                                                                                                                                                                                                                                  ally                          – they                       The new
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                the probl                   era. And
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         there lay
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   n in
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  What was                                                                                                                                                                                                               processing incompatible.                                                              OE13-124
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               em! Over                                                                                                                                                                                                                                                                                                             Image
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               units had                       40                                                  true, howe                                                                                                                                                                                           curve equa techniques such                                                                            low light
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          BIT came
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                long since years later, the                      physical
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               size of the ver, was that the                                                                                                                                                                            equalisatio lisation and histog S-
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      as                                                                              ra
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               made. As                          stopped                        to becom
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                the suppl
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             being                             e an issue
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 SIT came
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 as the induswas                                                                                                                                                                       this came
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         n, however,
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       ra as stand are built into
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      ram                        Environmenta
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             to searc
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               companies gradually
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           h for                 were force
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              applications deeper waters.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       Low light
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      the way
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    in which             ard, and
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      part of                  The OE13
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          l Issues
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            alternatives low-light came                         d                                   necessitate                                                    image using                                                                                                                        sensitivity,”               we attain

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         ra                   pressure                                d larger                                                                                                                                                                                          Mackay                   this light                                   -124 has
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 .                                                            housings.                                                                          a SIT came                                                                                                                                            said.                                   gained in                   used exper
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             camera                                                                                                                                                                                                                                                                                                          over
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           “SIT was                                                                       was robus A typical SIT                                                                               ra
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    The same                                                         “We norm                                                                 harsh enviro 30 years of manu                 ience
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           an                                               to 3km as                       t enough                                first gene                                                                                   tank the                                                             ally quote                                                                 nment marin                  factur
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          and lasted outstanding techn                                      newer range
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           to be rated                          ration electr                                                       using the             same target                                measuring                        two ways                               standard
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           camera                 e products. ing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              OE13-124                                                                the sensi                     of
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         Dave Mack for a long time,”                       ology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           smaller and            of CCDs because the                              (EMCCD)                    on
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 technologie multiplying CCD                                                               BIT came and light conditions            number
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 is 1x10 -5          tivity. The                             Titanium                 is fi
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          Alloy (6Al tted with a Grade
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      said                                                       were gene                        to match                                                                                                            ra                                                                            headline                ing, rated                  / 4V) press                 5
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         Kongsberg ay, General Mana                                                             lighter, other                  rally                          or             s. Many
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         have claim                                                                                                 figure is                   lux,
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 often quite however, this                                                 to 4500m                     ure hous-
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            . “If it were               ger at             cameras
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          could                     wise simila                  of the SIT, even better the                            ed
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           unde rwate
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   useable                                                                  pressure                     although
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        available                             economical                  without increa be rated to 4.5km r                                                     however,             perfo                                                The new r viewi ng range                                             speci              misleading                                             housings                    deeper rated
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        by many
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        today, it
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       would                  ly                                  sing the                                       match the                  most have rmance                                                         unit is built          s.                     400 TV line fication is the                      . A more                                            are availa
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       as the prove still be seen                                                               physical                                       performan                  failed to                                       advanced                 around an                                                                  picture at
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       choice.                                                                                                               size.              operating
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            ce in real                                                                CCD senso                                    OE13-124 resolution, which                                              Electromag
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            n technology                 In order
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       to achieve
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          backillumin               r design                                       measures                     the                       for came netic protection
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               of        sensitivity,                    enough                                “One of                                                                                    CCD subst ated and thinne            – using                                             at 5x10 -5
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  lux.”                                ras
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          other ‘noisy mounted with an
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  is important
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      light                                                                                                                                              d (BIT)                  The the
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      “Its gradu
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      al                                                have to
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          the small
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         er CCD                                            the main
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       demands                                                           technology rate. This new CCD                                       new came                                                    ROV’s. The ’ electronic equip
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     array of
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     be                                                       terms of
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      prompted absence, howe                                            This has thermoelectricall
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      sensors                               ROV navig                of a came                                          electronic is combined with sensor
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 attracting                  ra
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                early intere is already                                  high degre OE13-124 incorp
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  ment on
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      camera                      ver,                                the                            y cooled.               underwate                    ation                   ra                                                and enviro             leading edge          and ploug
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     on techn
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   ologies based
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    to work            thermally-g effect of reduc                                                           r,” said Dave , is light inten in                                          produce                  nmental                                       h operators st from ROV                                                  e
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        interference of immunity from
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   orates a
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         enerated                   ing the                  where the                        Mackay.             sity                                            dependab                  protection          industry,                         in the offsho                                                                    conducted
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     charge-cou                                                       sensor. This                                                                           SIT exce                                                                                         le performan               to                  and                                                                         , while contro
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    this gap           pled CCD on low light                                                             noise
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           in turn mean within the                          low-light                   lled, but          “That is                                                                           ce in the        to the milita is of particular                        re                prevent
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   interference             lled emiss
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        sensors                       possible                                                                             CCD base                where most                                                                                                                                              interest
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  in the                                                                                        s that                     to do so.                                                                                                                                           conducting ry which are plann                                                                        with other            ions to
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    varying amou market place to fill                                                to
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     get bette boost the electronic it is
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           They some replacements                                                              Camera                                                                                                                                                               equipment.

                                                                                                               3) CD Rom
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             failed                                                                                                             evaluation                   ing on                   Many under
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          nts of succe – with                                      r light sensi                                           SIT light
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          sensitivity times got close                                                          Higher = Light Sensitiv
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         gain to                                                                                                                                                                                                 trials.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              ss.”                                                    tivity                              short viewi                  performan              to                                                           better light            ity                                                                               just came water electronic
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        sensitivity vs Underwa
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      0.1                                                                                                                                           ras)                       sensors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   In truth,                                                        The coolin                                                                             ng range                  ce at very                                                                                                                                                                      high-pressu use elastomeric                           (not
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                SIT                                                                                                                       notably                                                                                                                                                        ter View
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  remarkable cameras were                                                            g
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    Peltier type is normally based                                                     were much s underwater, but

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          ing Range                                 These sealsre underwater opera                seals for
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         the typica                   inferior to              they
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  problems. but not without                                        cools down device, where one on a                                                     l                                                                                                                                                                                                                             are prone                   tions.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        ROV navig viewing ranges                   the SIT
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              inher                                                                                                                                                                                  1                                                                                                                              meability
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  One such                                                                                                                                                                     at                                                                                                                                                                                                    to long term
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    was image ent                  Attaching while the other                         side                                                     impo                                                                                                                                                                                                by water

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       e Illumination
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     burn.                        the solid                    heats up.                25m. The ation tasks – betw rtant for                                                                                                                                                                                      internal humid              vapour ingres
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   s causing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 “SIT techn                                                       the cool                        state CCD                                             new adva                 een 5m                                                                                                                                                                           larly impor           ity build
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 ology                                                         side may                            chip to             offers much                   nced CCD                and                                    10                                                                                                                                                             up.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  tant for under This is partic
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                intensification was based                                          much as                      cool the
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     ,’ said Dave on light                                      -80 degC                     sensor by                 compared improved light                     technology                                                                                                                                                                    as this can                        water came             u-
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                side-effect                               Mackay.                                              .                             as       first gene with conventional
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              sensitivity                                                                                                                                                                        assemblies lead to ‘misting up’                      ras
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 made the
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            if bright
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               prone to
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       ‘A     CCD                                                                     underwate
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      ration EMC
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     CD syste
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               CCD and                                             100                                                                                                                                             and front
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               of optica

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              light enter                                                                                                                                              r viewing                ms at all                                                                                                                                                                       The OE13
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             ed the came nary sources of                        In the past
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    ranges.”                                                                                                                                                                                                    -124 uses
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   ra.                          alternative few years, resea                                         Now, Kong                                                                                    1000
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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            operators, utmost diligence                                        been ongo in low light levels                             s                           model OE13                  a                                                                                                                                                                           desiccant                     n molecular-s                ,
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             it was not
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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              a range                           resulted                           number                     the                 it                                                                                                                                                                                       internal enviro
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 for                      of innovations                      in such                            of adva ntageSIT and has a                                                                                                                                                                                                                               a low-
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             CCD (ICCD                                                                                                                                                                                                                                                                                      operating                           nment over
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               ), high-gain as intensified                          by its prede                     s not enjoy                                                                                                                                                                                             life.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            visible intern The camera is                         a long
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            26            UT 2 DECE                                                                                                CCD and                        impro ved cesso r. It offers                    ed                                            100 000                                                                                                                                         al humid               fitted with
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         MBER 200                                                                                                                                  light- sens             a much                                                                                                                                                                                                           ity indica                a
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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                8                                                                                                                                                                                                      0.1                                                                                                                 The OE13
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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               ms at all
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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          OE13-124                              r Viewing                      100                                                     to protect                          ction
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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      SIT                                             cable floodinevent of an ROV
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    polarity powe g) or an accid

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        r connection. ental

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  Oceans                                                                                     The Digi tal                  UT 2 DECE
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    MBER 200
                                                                                                                                                                                                                                                                                                                                                                                        Subsea Vehicles

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         Subsea Vehicles
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               Digital Controlled Manipulator                                                                              The digital control of devices opens
                                                                                                                                                                                                                                                                                                                                                                                                           VEHICLES                                                                                                                                                                                                                                                                                                                                                                                                                            The remote systems manufacturer
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   CSIP has recently
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           of exciting possibilities for the future
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    up a number
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    of the subsea
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           intervention sector. It provides precision

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               developed a novel all-electric manipulator                                                                                                                movement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           arm. Tests                                                      and very accurate reputability. It
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               have shown that it performs to                                                                                                                   can also be operated
                                                                                                                                                                                                                                                                                                                                                                                                           East Side Story                                                                                                                                                                                                                                                                                                                                                                                                                                                     exactly the same level                                                      using an open digital control interface.

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                Trawl Research
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               as a hydraulic arm of a similar
                                                                                                                                                                                                                                                                                                                                                                                                           It was a pleasant day in early September 2005 on Brown’s Bank,                                                                                                                                                                                                                                     The Magnus Effect                                                                                                                 number of other advantages.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               specification but offers a
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           Instead of being controlled by its

                                                                                                                     LONG DISTANCE
                                                                                                                                                             TIE-BACKS                                                                                                     Eco II                                                     to
                                                                                                                                                                                                                                                                                                                                                                                                           some 100km off the shores of Shelburne on Nova Scotia’s South
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              “Most of the new vehicles are all                                                                           graphical user interface, it can be
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              own joystick or
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               connected directly

                                                                                                                                                                                                                                                                                                                                                                                                           shore. The calm sea had less than a 1m swell and light winds (less                                                                                                                                                                                                                                                                                                                                                                                                    electric, and so we
                                                                                                                                                                                                                                                                                                                  working together                                                                                                                                                                                                                                                                                                                                                                             In most ball games, it is possible                                                                                             decided to design an electrical                                                                             with the ROV’s control system. This
                                                                                                                                                                                                                                                                                            FMC are currently sor for Asgard.                                                                              than 5kts) blew across the water. The visibility was six miles. From                                                                                                                                                                                                                                                                                                                                                                                                manipulator to match                                                                                              potentially allows

                                                               Subsea Gas Compr
                                                                                                                                                                                                                                                                            Siemens and             gas compres                                                                                            a vessel, a remotely operated towed vehicle (ROTV) was being
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               to get the ball to swing through                                                                                               the capabilities of the entire ROV                                                                          instruments to work in tandem with
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 system,” said CSIP                                                                                             each other semi-
                                                                                                                                                                                                                                                                            develop the ECO-II                                                                                                             used to carry out a routine survey of scallop habitats in waters of
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               the air in wide arc by imparting a                                                                                             Managing Director, Simon Gilligan.                                                                          automatically.
                                                                                                                                                                                                                                                                                                                induction motor                                                                                                                                                                                                                                                                                                                                                                                spin on it, often with devastating
                                                                                                                                                                                                                                                                                                a high-speed                                                                                               up to 50m, on behalf of the fishing company Clearwater.
                                                                                                                                                                                                                                                                             ECO-II employs                       drive. The mo-                                                                                                                                                                                                                                                                                                                                                                               results. This is due to a principle                                                                                             Almost all manipulators are currently                                                                     If, for example, the ROV’s computer
over time,                                                                                                                                                                                                                                                                                    a variable speed                     its                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               hydraulic. This                                                                                          knew
                                                                                                                                                                                                                                                                             equipped with                          d gas, as are                                                                          On board was Bill Hickey, an experienced fishing gear technologist                                                                                                                                                                                                                                   of physics called the Magnus                                                                                                    requires a pump and valve pack
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                to be hosted on the                                                      where the jaws of a manipulator
                                                                                                                                                                                                                                                                                                   by the extracte                        s                                                                                                                                                                                                                                                                       A ship trawling
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              ROV to provide power for the arms.                                                                                                           were, it could
 ually                                                                                                                                                                                                                                                                       tor rotor is cooled                        . The designer                                                                     with the Conservation and Protection, Department of Fisheries and                                                                                                                                                                                                                                   effect. This is more exaggerated                                                                                                                                     Removing these                                                       direct cameras and lights to that
 t from com-                                                                                                                                                                                                                                                                                     e magnetic bearings natural gas mix-                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         items decreases the weight of                                                                                                                specific point
                                                                                                                                                                                                                                                                             maintenance-fre                      ssed                                                                                     Oceans, Newfoundland Region. Mike Smith of the St John’s-based                                                                                                                                                                                                                                      when a ball or cylinder passes                                                                                                                                the vehicle. It also
 shore. In                                                                                                                                                                                                                                                                                     that any unproce the copper wires,                                                                                                                                                                                                                                                                                                                                                                              through a fluid.                                                                                                                removes the possibility of hydraulic
                                                                                                                                                                                                                                                                              have ensured                                                                                                                 ProDive Services was on hand to provide technical support.                                                                                                                                                                                                                                                                                                                                                                                                              fluid leaking out in
                                                                                                                                                                                                                                                                                                    quickly corrode                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           the case of an accident.
nd its part-
 g a subsea
                                                                                                                                                                                    Ormen Lange                                    o-beach developm At
                                                                                                                                                                                                                                                         ent tied             ture, which would contact with the windings of
                                                                                                                                                                                                                                                                                                                                                                                                           The towed ROV was responding well to operator Bill Hickey’s                                                                                                                                                                                                                                         The spin creates a boundary
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              to repeat an action precisely. Once
                                                                                                                                 of the gas                                                                 field is a subsea-t                                                does not come                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       users can see what
ompression                                                                                              separate the bulk                                                           The Ormen Lange away and lies in 850m water
                                                                                                                                                                                                                                                    depths.                                       drives the rotor.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          Electrical arms have the same                                                                    they can do with the arm, CSIP predicts
                                                                                  an inlet vane to
                                                                                                                                                                                                                                                                                                                                                                                                           expectations, however, about 20 mins into the work in an area
                                                                                                                                       gy                                                                                                              nt solu-                electric coil that                                                                                                                                                                                                                                                                                                                                                                                                              layer of moving fluid around itself.                                                                                                                             working envelope                                                                                       that this will open
                                                                                                        hydrocyclone technolo the                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            as their hydraulic counterpart.                                                                  up the possible number of uses.
 a topsides                                                                       and liquid, and                                    As                                             back to shore 120km oating infrastructure. A permane                                                                                       made of                                                                     of strong tidal currents, the vehicle snagged and the umbilical                                                                                                                                                                                                                                     If the ball or cylinder travels at a                                                                                                                           They can be used
                                                                       tech-                                   liquid droplets.                                                     present, there is
                                                                                                                                                                                                         no fl                                     will either see                                      in a gas-tight casing                                                                               snapped, losing contact with the submerged vehicle. After 8 hours,                                                                                                                                                                                                                                                                                                                                                                for cutting, clearing debris, turning
 design is                                   step-change new ing                  for removing smaller                               water                                                                                     by 2015, which                                  The rotor is housed d, fibre-reinforced plastic.
                                                                                                                                                                                                                                                                                                                                     The                                                                                                                                                                                                                                                                                                                                                                       certain velocity, the velocity close                                                                                                                                valves, etc.
                       Deploying such                                                                        decreases, more                                                                           Lange is required                                     sion
                                                                                                                                                                                                                                    of a floating compres of the                                                                                                                                            they called off the search.                                                                                                                                                                                                                                                                                                                                                                                                       The principal advantage, however,                                                               Since the control system knows
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             where the arm is, it is
 board to                                    , is always challeng                  reservoir pressure                                                                                tion for Ormen                                                                             a specially develope                    eliminated the                                                                                                                                                                                                                                                                                                                                                                         to the body at one side is a little                                                                                                                                 is that they are
                       nology, however                                                                   produced, so the
                                                                                                                                 scrubber                                                                 sion or the building                 much as 25%                                            design has also
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             considerably more controllable.                                                                 possible to have two arms working
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               together and enables
 decisions will                                   to be managed,                   will typically be                                                                                 subsea compres                          base case. As                                      innovative ECO-II                 l in conventional
                                                                                                                                                                                                                                                                                                                                                                                                           One year later                                                                              Artist’s drawing of the remote vehicle. All pictures                                “We had been using motorised Charlie                                                                                greater (because the velocity of                                                                                                                                                                                              greater accuracy. The computer
                       and the risks need term view is need-                                              for a range of
                                                                                                                              liquids.                                                                  the field as the                              compression.                                 seals, essentia                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            can also set a zone of
                                             long                                   will be designed                                                                                  platform above                                nt on offshore                              need for shaft                                  periodic                                                                                                                                                               courtesy of the Fisheries Research Services,                                        Boards, a modified pelagic (mid-water)                                                                               the boundary layer is added to                                                                                                Gilligan continues, “Most of the                                                                exclusion to prevent one arm from
                        which means a                                                                                                                                                                      volume is depende                                                                              gy, as they require                                                                              A local Nova Scotian fisherman was surprised to find a large                                                                                                                                                                                                                                                                                                                                                                                                           hydraulic arms are                                                                             hitting the other.
                                          investing in pilots
                                                                     and                                                                                                              recoverable gas                                                                            compression technolo                     , requires little
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       Marine Laboratory unless stated                                                     trawl system, where the standard                                                                                    the velocity). Conversely, at the                                                                                             what are often referred to as bang-bang,
                        ed, including                                        c                                                                                                                                                                     individual indus-                             The design, thereforeally improved
                                                                                                                                                                                                                                                                                                                                                                                                           structure caught up in his nets as he pulled the catch into his                                                                                                                                                                                                                                                                                                                                                                                                               in that they
bsea gas com-                                    where the economi                   Åsgard                                         and gas                                                                                      life in 1989 as                , it was         replacement.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           vertical otter boards used to keep the                                                                              other side, the velocity is a little                                                                                          are either on or off. An electrical                                                             “Electric arms have been designed
                        early applications                                                                                                                                                                    project started                                                                                                                                                                              vessel. It was the subsea vehicle over a year before. Research                              One of the first use of controllable remotely                                                                                             The RCTV                                                                                                                                                                                                                         arm has incremental                                                                                in the past, but it is only
  component                                      not be a great
                                                                       as they                           250m water depths                                                             The compression                                     project, however                                       resulting in dramatic                                                                                                                                                                                                                                                                    mouth of the net open, were replaced                                                                                less because the boundary layer                                                                                               movement and therefore, much                                                                    fairly recently, that the components
                        advantages may                                              Åsgard lies in                from the Mikkel
                                                                                                                                         and                                                               in,  2001–3, as a DEMO Critical components                            maintenance,                         performance.                                                                         quickly revealed it to be Clearwater’s missing vehicle. There                               operated vehicles (ROVs) was at the Marine                                          by rotating vertical cylinders. When                                                                                                                                                                                                                                                 more accurate to                                                                                   have been available to
   of developing                                                                                                                                                                       try projects and                              began.                                                          environmental                                                                                                                                                                                                                                                                                                                                                                                             velocity is subtracted from the                                                                                               drive.”                                                                                                           compete with the hydraulic technology,”
                         will be in future
                                               applications.                         needs to be pumped 40km away from                                                                                         concept studies                   the subsea com-                  productivity and                                                                                                         followed a period of negotiation. At the end, the fisherman was                              Laboratory of the Fisheries Research Service                                        the rotors were spun, the Magnus                    The compact rotors produced the                                                                                                                                                                                                                                                                                                                             said
 bsea process-                                                                       Midgard fields,
                                                                                                          some                                                                          not until 2003 that                   and 2006, and                                                                                                                                                                considerably richer, while Clearwater was reunited with its errant                          in Aberdeen.                                                                                                                                                                                            normal velocity.                                                                                                                                                                                                                                          Simon Gilligan.
                                                                                                                         lack of avail-                                                                   between 2004                                      next year.
                                                                                                                                                                                                                                                                                                  sensitive to liquids,
                                                                                                                                                                                                                                                                                                                        which                                                                                                                                                                                                                                                              effect would steer the net left and                 equivalent force to drive the vehicle
 n Davies,                                             dro merger, Statoil, the Åsgard platform. The                                                                                    were qualified                                y. Testing will start                        The design is
                                                                                                                                                                                                                                                                                                                                                                                                           ROTV. After lying dormant in the water for an extended period, the
                          Prior to the StatoilHy                                                                                    led to                                                                   currently underwa                                                                                     gas-liquid                                                                                                                                                                                                                                                              right. This was an early example of                 left and right that would have to
 echnology and                                        signed a contact                                    the topsides have                                                             pression pilot is                                                                                          removed by a                                                                                            vehicle was returned to the original supplier – Sub-Atlantic, for a                         When the Marine Laboratory first wanted                                                                                                                                                                  Bernoulli’s principle says that the                                                                                                                                                                                                                           “We now have access to the
                          operator of Åsgard                                          able space on                                                                                                                                                                    out        will have to be       the incoming fl
                                                                                                                                                                                                                                                                                                                         ow                                                                                                                                                                                                                                                                targeted fishing, where the net could                otherwise a fin would have been
                                                                        at                                       g a subsea solution                                                                                                      work is being carried the                                                                                                                                        total refurbishment.                                                                        to film fishing trawl gear underwater in the                                                                                                                                                              fluid pressure is less where the                                                                                                                                                                                                                              latest generation of extremely
 no subsea gas                                and MAN to look                         designers proposin having to build a new                                                                                      sor development                           am as               scrubber to handle                    FMC                                                                                                                                                                                                                                                                be directed to catch fish observed on                required with an area of 1m square.
 in operation and
                          with Siemens
                                                  sion technology
                                                                          while                             e to                                                                         The subsea compres GE Oil and Gas and Converte                                                            demist the liquid.                                                                                                                                                                                  1970s, it used divers who swam onto the gear                                                                                                                                                            velocity is greater and vice versa.                                                                                                                                                                                                                         powerful electric motors and
                           subsea compres                                             as an alternativ                                                                                                          , with                                               ent           transients and                                                                                                                                                                                                                                                                                          the ship’s echosounder. This gave
                                                                                                                     .                                                                   by Aker Solutions                                     of the developm                                         upon its subsidi-                                                                                   “Considering that it was lost in relatively shallow turbulent                               with the first underwater video cameras. For                                                                                                                                                             The difference in pressures                                                                                                                                                                                                                               gearboxes. This has allowed us to
  need to be ad-                               development operator                    compression platform                                                                                                          Hydro was operator                    n phase, will           says it has called                                                                                                      waters, which must have subjected the vehicle to considerable
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           scientists the unique opportunity                   Since the 1980s, the RCTV has
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     create a set of electric actuators
                           Ormen Lange                      contracts to Aker                                                                                                            main subcontractors. as operator of the productio                                                            ring, to provide                                                                                                                                                                                 the first time, scientists were able to directly
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           to relate echo-gram images to fish                   been used in many applications on                               cause the cylinder to move                                                                                                                                                                                                                                                               that
 comes a reality.”                                                                                                                        been                                                                                                              sion or float-               CDS Enginee                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               mimic their hydraulic equivalents.”
                           Norsk Hydro awarded Pignone com-                                                          solutions have                                                       phase, however
                                                                                                                                                                                                              , Shell,
                                                                                                                                                                                                                                    of subsea compres
                                                                                                                                                                                                                                                                                    ary                   gy for safe                                                                                      movement over a couple of years, the fact that it was recovered                             see the way that trawl systems worked.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           species and size.”                                  research and commercial fishing                                  perpendicular to the direction of
                                                    Nuovo                                        several interim                                 ty,                                                          for the selection                                                     separation technolo n. A proto-                                                                                        in a structurally sound condition was a testament to the original
                            Solutions (using                                   and While                              production availabili                                               be responsible                                                                                                                                                                                                                                                                                                                                                                                                                                       vessels, to enable scientists to                                the moving fluid.
  ant rewards for                                     gy). When Statoil                 proposed to maintain is required by 2013 to                                                                                         option.                                                 compres   sor operatio                                                                                                 construction,” said Ian Garioch of Sub-Atlantic. “It just needed                            “We discovered that depending on how the                                                                                                                                                                                                                                                                                                                                                                                                        CSIP’s new electric manipulator
                            pression technolo                                was                                                                                                          ing compression
                                                                                                                                                                                                                 platform                                                                                   in the                                                                                                                                                                                                                                                                         “Armed with experience of rotors for                directly observe pelagic (mid-water)                                                                                                                                                                                                                                                                                                       arm,
oying subsea gas                                   the new company                       a permanent solution rate of 8 million m /                                                                                                                                                  type system installeditself in field                                                                                   minor parts replacing. The whole bill for the repair of the vehicle                                                                                                                                                                                                                                                                                                                                                                                                                                                                          ARM 5E, has the sort of power
                                                                                                                                                3                                                                                                                                                                                                                                                                                                                                                      gear was rigged and towed, this determined
                      t- Hydro merged,                                                                                                                                                                                                                         more com-                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   that is
                                                         with the parallel                                        flow                                                                                                                      ably larger and                                                                                                                                                                                                                                                                                                                                 steering, we carried out collaborative              and demersal (sea-bed) trawls,                                  By using two pairs of rotating                                                                                                                                         The ARM 5E
 an give accelera                                                                        meet the required ow challenge will involve                                                                                design is consider                            15m3/day           Netherlands proved in 2006.                                                                                           itself, was less than £3000.”                                                               how the fish were selected and caught,” said                                                                                                                                                                                                                                                                                                                                                                                                           suitable for the latest, large work-class
                       - positive to continue                                                                      fl                                                                       The Ormen Lange four compressors, each pumping                                                             began                                                                                                                                                                                                                                                                                work with the then Robert Gordon                    to determine that the gears were                                cylinders mounted 90deg from                                                                                                                                           manipulator arm
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               electric ROVs such as SubAtlantic’s
 creased hydrocar            development.                                                day. The minimum                               ate pump,                                                                  g                                         g 7200m /
                                                                                                                                                                                                                                                                                      operations that                                                                                                                                                                                                  Chris Hall, head of the engineering group at
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           Institute of Technology, to build a                 fishing correctly, that the nets were
  l as lower capital                                                                      two compres      sor trains, a condens cooler.                                                   plicated, envisagin a condensate pump deliverin                                                                                                                                                                 Clearwater has now decided that the vehicle is currently surplus to                         Fisheries Research Services (FRS). Those
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               not distorted and, where applicable,
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               each other, a towed vehicle can                                                                                                                                  The digital positioning of the actuators                                         Comanche, Schilling’s EHD and
                                                                                                                                                                                                                  and                                       of 12.5MW                                                 oper-                                                                                                                                                                                                                                                                simple towed sledge with a front rotor,
                                                                                                               an inlet/anti-surge                                                                                                                                                                   is expected to                                                                                                                                                                                                                                                                                                                                                                                            be accurately positioned up and
                                                           rt System (ATS)                                                                                                                 (total 60 m /day)                             power demand                                The 6MW unit
                                                                                                                                                                                                                                                                                                                                                                                                           its requirements and has approached the Halifax-based deep-sea                              early investigations have been refined and                                                                                                                                                                                                                                                                                                                               can achieve an accuracy of typically                                              SeaEye’s new Jaguar vehicle.
 enditure (CAPEX              The Åsgard Transpoadvanced stage,                           a scrubber and                                                                                                             sor will have a                       from shore, the                               with no main-
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           which could be spun to control the                  that they were maintaining contact                              down, right and left.
s move to    deeper                                                                                                                                                                         day. Each compres 58MW). Due to the distance                                             ate for five years
                                                                                                                                                                                                                                                                                                                                                                                                           imaging consultant Ulrich Lobsiger, who has been active in the                              developed, to ensure that FRS scientists                                                                                                                                                                                                                                                                                                                                around 0.5mm in stroke position.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               latest design is a five-function arm

                                                  more                                                                                       . This                                                                                                                  r. The                                                                                                                                                                                                                                                                                                                depth of the sled.”                                 with the seabed. The TV images
                              project is at a                 taking place at
                                                                                 the                                power of 8–10MW                                                         (total power budget require a subsea power converte 70m in                                                        to test                                                                                      industry for over 25 years, to look for a suitable purchaser.                               continue to obtain valuable and practical                                                                                                                                                                                                                                                                                                                              computer control electronics know                            but CSIP is considering a seven-function
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        electric arm.
 mote/ harsh envi-            with testing currently facility, while the                   These will require of an additional 40 bil-                                                                             also                                        frame                 tenance. It is planned                                                                                                                                                                                                                                                                                                                                    showed how fish reacted to different                                                                    Upward
                                                                                                                                                                                                                                            in a protection                                           wet, impure                                                                                                                                                                                      knowledge about fish and their behaviour                                                                                                                                                                                                                                                                                                                               where the arm is at all times, and
                                                                                                                                                                                            unit will therefore                                                                       the Eco II with                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             its
                                                    K-Lab                                  will see the recovery cation of components                                                                                    will be housed                          and will see                                                                                                                                                                                                                          in relation to trawls. To better protect the                                        In order to achieve both vertical and               components of the trawls (eg, the                                                                      Force                                                                                                                 exact position can be displayed                               The CSIP ARM 5E manipulators
                                                                           y with                                                                                                            compression system 25m high. It will weigh 5300t                                                         StatoilHydro’s                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           in three                                                    can be controlled via

                                                    pilot is underwa                                           Qualifi                                                                                                                                                                 natural gas at                                                                                                                                                                                                                                                                                       lateral control, FRS engineers built a              sand clouds generated by the doors,
                                                                                           lion m of gas.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 a range of controls such as hand
                               Ormen Lange                                                                                              began at                                                                     and                                                                                                                                                                                                                                                                               divers we assembled a Perspex screen onto                                                                                                                                                                                                                                                                                                                            dimensions on screen.                                                                           grips, joysticks and
                                                    start later this
                                                                         year.                                  and testing work                                                             length, 54m width                                                                                                                                                                                                                                                                                                                                                                             towed platform with two pairs of rotors             the tow wires and the ground gear)
 on is highly ef-                                                                                                                                                                                                                                                                      K-Lab in 2009.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     master/slave arrangements. The
                                                                                                                                                                                                                               3 of gas.
                               testing due to                                               began in 2005                                 the ma-                                                                    billion m                                                                                                                                                                                                                                                                         a towed ‘chariot’, which could be steered by                                                                                                                                                                                                                                                                                                                                                                                                                        arms are also available
                                                                                                                 with plans to test                                                           an additional 100                                                                                                                                                                                                                                                                                                                                                                            set in a cruciform orientation, to create           and gave scientists an indication of                                                                                                                                                                                                                                                       with various types of jaws, grabbers
o solutions that                                                                            K-Lab in 2008,                               a 40-week                                                                                                                                                                                                                                                                                                                                                     means of fins to control the attitude and lateral                                                                                                                                                                                                                                                                                                                      Being digital, it is possible to programme                                                        cutters, parallel jaws
                                                                                                                   two suppliers in                                                                                                                                                                         or
                                  Gas Compression
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               how trawls could be tailored to be
e gas rather than                                                                            chines from the                                                                                                                                                                           The ECO-II compress                                                                                                                                                                                             placement, while a second diver manned the                                          what was termed the remote controlled                                                                                                                                                                                                                                            the arm to carry out a specific task
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          and rotating brushes.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           television vehicle (RCTV). The first                 more selective (ie to target only one
eld. There are
                 also                                      machinery located                 programme.                                                                                                                                                                                Right: In section.
                                                                                                                                                                                                                                                                                                          under test
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       camera.                                                                                                                                                                                                                                                                                                                                                             select a task from a function register
                      ons       Based on rotating                          becomes                                                                                                                                                                                                     Below: The model                                                                                                                                                                                                                                                                                    prototype consisted of long, thin rotors            fish species).                                                                                                                                                                                                              the control software. The arm will
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       in                One addition that would be relatively
 d safety implicati                                    maintenance                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               simple to install on
 ck of surface facili-
                                on the seabed,
                                                         StatoilHydro has,                        number of compone
                                                                                                                             nts have to be
                                                                                                                                                                                                                          K-Lab                                                                                                                                                                                                                                                                        “By the 1980s, researchers wanted to                                                63mm dia and 1.6m long, copied from                                       Easytrak Nexus                                                                                                               Wet Mate                                                               automatically perform that operation.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   then                  electrically operated manipulator
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           jaws is a force feedback
                                 extremely costly.                            of a five “A                                  compressor station                                                                                                   ss facility that has                                                                                                                                                                                                                                   observe trawls at commercial fishing depths                                          the size of rotor on the sledge.                    From the early RCTV, which was                                                                                                                                                                                           It also has a learning capacity. As                              mechanism. This could prevent
 ffic, reduced risk
                       of                                 the challenge                       fied before a subsea                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              its                                                       overgripping and crushing
                                 therefore, set up                 regular mainte-                                       said Simon Dav-                                                                                   K-Lab is a world-cla StatoilHydro to                                                                                                                                                                                                                                        beyond 100m – a depth impractical for divers.                                                                                           fitted with only a single monochrome
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                Applied Acoustic Engineering has           As with all Easytrak systems, Nexus                                                    As organisations in the subsea                                        movements are recorded digitally,                                the object to be moved. “In theory,
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             it would be possible to
sion.                            year interval between                                        becomes a reality,” the motor cool-                                                                                          been establish
                                                                                                                                                                                                                                          ed by                       -                                                                                                                                                                                                                                Initial efforts to develop a manned, single-                                        Tests in 1981 in Loch Ness, however,                                 launched direction,
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               camera swivelling in one its latest USBL tracking           works with a variety of underwater                                                     industry develop more applications
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              it is possible             pick up a egg without any difficulty,”
                                                            reliable and robust                      “These include                                                                                                                           qualify gas measure                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              said Gilligan.
                                                                                                                                                                                                                           analyse, test and                                                                                                                                                                                                                                                                                                                                               confirmed that these dimensions were                                   a pan and tilt
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               we have added system.
                                  nance. This light,                              to the ies.                        the high voltage                                                                                                          ng equipment
                                                                                                                                                                                                                                                                at full-                                                                                                                                                                                                      The remote vehicle       atmosphere towed observation platform, and                                                                                                                                               Velocity targets and beacon types, including                                                      using fibre optic technology, there
                                                         flexible in relation                   ing system and                                                                                                                                                                                                                                                                                                                                                                                                                                                                              wrong. By increasing the rotor diameter to          unit fitted with combinations of
                                  design must be                                                                                                                                                                            ment and processi bon gas at realistic                                                                                                                                                                                                           being repaired at         a remote-control version of the divers’ finned                                                                                                                                                       pingers, responders, release and                                                                                  UT2 the
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  has been a dramatic increase inMARCH 2009
                                                               g conditions, while              penetrator. The
                                                                                                                      most suitable                                                                                                                                                                                                                                                                                                                                         Sub-Atlantic’s                                                                                                 165mm and reducing the length to 110cm,             low-light-level SIT and CCD TV Easytrak Nexus,the Magnus effect causes a                                                                                             26
                                  change in operatin                  should be mod-                                 to be selected                                                                                         scale using hydrocar high temperatures                                                                                                                                                                                                        Aberdeen base.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       vehicle, proved impractical. It was at this time                                                                                                         The new system,             How            positioning transponders.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               cameras, 35mm film and digital still recent inspinning object to move normal to the
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  quantity and complexity of connec-
  field area                              compressor station                                     materials have                        d                                                                                     conditions, including
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       that the idea of using Magnus rotors was                                            the researchers found that the unit was                              represents the most          a                                                                                                    tor configurations needed to fit these

                                                                                                                                                                                                                                                  N W
                                   the                           individual retrieval                                  y marinise                                                                                                                                                                                                                                                                                                                                         Pictures courtesy of                                                                                             30% more efficient and increased the dive            photographic cameras. One of the developmentsdirection of the force
ature, there will
                                   ularised to facilitate subsystems.                           and the assembl             and control                                                                                     and pressures.                                                                                                                                                                                                                                Sub-Atlantic
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       developed”.                                                                                                                                              series of innovative                       Furthermore, Nexus operates in                                                         applications.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           range and lateral control.
  production and                    of components
                                                          and                                    with a power supply d. A                                                                                                                                                 -                                                                                                                                                                                                                                                                                                                                                                                    in
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                Continued on p47 subsea acoustic tracking by the          both Kosiorek
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           Illustration: Bartosztraditional ‘tone-burst’ and
                   t for                                                                         system being develope                                                                                                                                subsea compres                                                                                                                                                                                                                                                                                                                                                                                                 company. Now incorporating spread         new spread spectrum modes. The                                                     This has led Seacon to develop a
  ocarbon benefi                                                                 an im-                                    y converter is                                                                                     Equipment, includes, pumps, high-pres-
                                                            d in the gas is                      topsides frequenc                                                                                                                               se                                                                                                                                                                                                                                                                                                                                                                                                                  spectrum technology, Nexus com-           spread spectrum beacons include an                                                 range of fibre optic products, which
outh area to utilise                Liquids entraine                                  the                                                                                                                                    sors and multipha                      multi-                                                                                                                                UT2 DECEMBER 2008
                                                           issue and, although sion an option.”                                                                                                                                               separation units,                                                                                                                    44                                                                                                                                                                                                                                                                                bines its high accuracy performance       enhanced 1000 Series with a depth                                                  are designed and manufactured to
  on from around                     portant design                                                                                                                                                                          sure gas/liquid                         pigs.                                                                                                                                                                                                                                                                                                                                                                                                                            UT2      telemetry 2008
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     with versatility and ease of operation.DECEMBER option and a bi-directional                                   45
                  field                                       of subsea compres                                                                                                                                                               valves and pipeline                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  meet the specific and varied environ-
 the end of the                      overall concept                                                                        of a suitable                                                                                     phase meters
                                                                    and Ormen Lange               The development the liquids
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               spread spectrum version for improved                                               mental conditions.
                                     at Gullfaks, Åsgard some important dif-                                                                                                                                                                          particularly well                                                                                                                                                                                                                                                                                                                                                                                              The rack-mounted Easytrak Nexus           range stability.
                                                     there are                                     scrubber to remove                            the side                                                                           K-Lab facility is
                                      is similar,                                    devel-                                  hold-up, with                                                                                    The
                                                                                                                                                                                                                                               out full-scale testing -
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     determines the position of a dynamic                                                                                         One of latest developments is its G3
                                                              technology being                           to avoid sand                            and the                                                                      suited to carry
  s currently looking                  ferences in the                               Ormen has                              and clogging,                                                                                                         of subsea compres
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     subsea target through the trans-          With low-power consumption, the bi-                                                optical wet-mate connector. This new,
                                                                  of Åsgard and                    issues of erosion                           liquid to the                                                                   and qualification
 mpression options,                    oped. In the case m is first sent to a                                            reintroduce the                                                                                                            conditions. More
                                                                                                                                                                                                                                                                       than                                                                                                                                                                                                                                                                                                                                                                                          mission and reception of acoustic         directional spread spectrum beacons                                                third-generation connector uses exist-
                 gy                     Lange, the wellstrea the liquids, such                      pump used to                                       sor                                                                     sors at near-field                         in re-                                                                                                                                                                                                                                                                                                                                                                                      signals between the submerged             can be connected to peripheral                                                     ing HydraLight technology and is avail-
 t gas technolo                                                                                                            eam of the compres                                                                                                     has been invested
 y Framo. This
                  design                scrubber to separate                                        pipeline downstr                          This pump                                                                         NOK250 million                                                                                                                                                                                                                                                                                                                                                                                                                       transceiver and the target beacon.        devices subsea to send back digital                                                able in 6 channels with either single-
simple and robust,
                                        as condensate
                                                               and mono-ethylene
                                                                                         n           also has to be
                                                                                                                          sand tolerant.
                                                                                                          also require liquid
                                                                                                                                     level control and                                                                          cent years to upgrade
                                                                                                                                                                                                                                                          the lab’s subsea                                                                                                                                                                                                                                                                                                                                                                                                                                     data, for example, current flow or                                                  mode or multi-mode optical fibres.                                                                  Sistac ROV                                               Micro ROV manufacturer
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              has launched a suite of
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       new vehicle
                      field                                   for hydrate preventioof                 will                                                                                                                       compression testing
                                                                                                                                                                                                                                                        facilities.                                                                                                                                                                                                                                                                                                                                                                                                  By incorporating spread spectrum          heading, as well as simultaneously
  niche in smaller                       glycol (MEG)                                                                          ng.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   Marine diving and construction                                                   underwater
                                                                , while in the case gas               condition monitori                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             technology, the frequency of the          being used as navigation transponders.                                             The G3 offers low profile optical con-                                                                                                                       options for its AC-ROV
   with lower pressure                   before boosting                             wet                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             specialist Sistac has chosen                             inspection system. This
                                                                 boosting of the                                                                      sors                                                   subsea
                                                                                                                                                                                            The Ormen Lange train
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     transmitted signal is able to be                                                                                             nectivity combined with simplicity of op-                                                                                    (PSS)
 rement. It is currently                 Gullfaks, direct                          ed.                                   and Siemens compres and                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     Perry Slingsby Systems                                   a new ultra short baseline
 carry out a pilot
                                          stream is also
                                                                being consider                        Both the MAN                     with the motor                                       compression system                                                                                                                           UT2 MAY 2009
                                                                                                                                                                                                                                                                                                                                                                   17                                                                                                                                                                                                                                                                                                varied, reducing its susceptibility       Nexus has a built-in PC running                                                    eration. It is suitable for tight interfaces
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     to provide their first workclass                                                     thickness
                                                                                                              a compact design                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       to interference and enabling the          embedded Windows XP with a solid-                                                  requiring low loss optical performance.                                                                                                                      positioning and tracking,
 ng real hydrocar
                     bons.                                                                             are of                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        ROV system for deployment                                                               laser
                                                                   a liquid gas separatoas
                                                                                              r                           the same casing.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           calculation of accurate positioning       state HD. The positioning information                                              This connector can incorporate flat                                                                                                                           gauge and variable intensity
                                          The scrubber is                                              compressor in                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  on a range of projects
of subsea compres                                                                     such                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           information.                              is displayed on a separate monitor                                                 or angle polished contacts, making                                                                                                                           scaling system.
                  will take                                       of technologies
  es alternative,                          using a variety                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     where activity of up to ten subsea tar-                                            it ideal for either signal communica-                                                               Brazil’s challenging deepwater
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              is used
011.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 Spread spectrum technology also re-       gets within a specified operating area                                              tion systems or optical measurement                                                                  terrain.                                                 The metal thickness gauge
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         in locations
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     jects unwanted reflected signals that      can be viewed. These targets can be                                                and sensing systems, such as tubing                                                                                                                           for integrity monitoring
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          to divers,
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     have made operating in challenging        Applied Acoustics’ beacons or those                                                hanger connections, tree connections,                                                                PSS will deliver a Triton                                previously inaccessible
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 of                             other larger ROVs and
 Subsea                                                                                                                                                                     filler
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     locations, such as ports or harbours,
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     difficult in the past.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               operating in the same frequency
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               range from other sources.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  riser monitoring systems and life of field
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  seismic systems (LoFS).
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       XLX 39 system capable
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       operating in depths of
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               up to                             inspection systems.

 2009                                                                                                                                                           es a gap
                                                                                                                                               also includ                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     will be
                                                                                                                            ELICS MK-5 complete swath cover-                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           3050m in late 2009. It                                                          probe
                                                                                                                                            es                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         deployed from Sistac’s
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 base                            “The vehicle mounted
                                                                                                                            and provid                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   and
                                                                                                                                            at nadir.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  in Itaborai, Rio de Janeiro,
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     to                          reduces inspection time
                                                                                                                             age even
                                                                                                                                                                     operations                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    for
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        support subsea activities
                                                                                                                                             for rapid survey , its high
                                                                                                                              Designed                         speed                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    Petrobras.
                                                                                                                                             knot survey                      detec-
                                                                                                                               with a 10                 for easy target          etry
                                                                                                                                              allows                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   a
                                                                                                                       5        resolution nes sonar and bathym                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          The Triton XLX 39 features
                                                                                                     the Elcis Mk               tion. It combi data visualization
                                                                          Elcis 100-40
                                                                                         0. Below:
                                                                                                                                              ced                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        Dynacon launch and recovery
                                                         Above: the                                                              for enhan          ion.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 system, A-60 rated control
                                                                                               harbour survey                     feature detect                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         van, multi-image video
                                                                                route and
       ELICS Lives
                                                                                                                   al                                                         l Navi-
                                                                  recovery;                      environment ysi-                                               ded Inertia d                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            and next generation ICE
                                               100-400,                           g (MCM);                                                      an embed
                                  ed ELICS                         mine huntin                         s; geoph                    Thanks to                     tightly couple
                  has launch and ready-to-use                                     ological survey debris                                    System (INS) ning system, it                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  (integrated controls engine)
       IXSEA                                                       and archae                    ing and                           gation                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            plus
                      all-in-one                                                  and dredg                                                            tic positio                   s                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    real time control system
        a turnkey,                      on a high-                  cal survey                                                      with an acous georeferenced image
                          ge based                                                                                                                   y                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    state of the art graphical
        sonar packa dual-frequency digital                          clearance.                                                      offers directl use.
         performance                       ful logging                                              part of a fam-                  with real-tim                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         diagnostics.
                       sonar, a power a topside                                     100-400 is                       00                                               ations includ
         sidescan                      cable,                        The ELCIS es the model 400-12 of
                        100m tow                        i-                                                        ncy                                MK-5 applic sment
          software,                      data acquis                  ily that includ operating freque                                The ELICS
                            unit and a                                              an                         ing range                              nmental asses                s;
          transceiver                                                  (which has                                                     rapid enviro and harbour survey
                                                                                          and an operat                                                                           unex-
           tion PC.                                                    400-1250kHzand the ELICS MK-5 ed.                              (REA); route                   defence;
                                                   ct sonar                        m)                                                                 homeland                  survey;
                                   d and compa                          of 30-150                   recently launch                                                ordnance
            This light,
                           rugge             and offers                              also been                                                           ploded           recovery
                               y, intuitive                             which has                                                                         search and
             is user friendl ment in just a few                                                                                                                             measures.
                           deploy                           ed                      combi     nes the                                                       min