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THE ADRIATIC LNG TERMINAL

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THE ADRIATIC LNG TERMINAL Powered By Docstoc
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THE ADRIATIC LNG TERMINAL


The Adriatic LNG Terminal is the first ever     This state-of-the-art structure has been      The remaining 20% is open for third
offshore Gravity Based Structure (GBS)          specifically designed to provide the          party access, out of which 12% has
for unloading, storing and regasifying          Italian domestic gas network with a major     already been allocated according to
Liquefied Natural Gas (LNG).                    new source of imported energy. Built with     the procedures defined by the Italian
                                                cutting edge technologies and boasting        Ministry of Economic Development and
The facility is located offshore of Porto       a highly innovative infrastructure, the       the Regulatory Authority for Electricity
Levante, in the northern Adriatic Sea,          Adriatic LNG Terminal is now ready            and Gas.
about 15 kilometers off the Veneto              to provide the nation with a safe and
coastline, where it is set on the sea floor.    reliable energy supply.
                                                                                               Components
It is connected to the national network of      When it reaches full operational capacity
                                                                                               the components of the terminal include:
gas distribution by a new pipeline.             later in 2009, the Adriatic LNG Terminal
                                                will be able to deliver 8 billion cubic        •   the concrete Gravity Based structure (GBs)
Overall, the offshore Terminal is designed      meters of natural gas per year (775 million
around a large concrete structure, which        cubic feet per day), or approximately          •   two LNG storage tanks inside the GBs
houses two LNG tanks, and includes              10 percent of Italy’s current natural gas      •   the regasification plant
a regasification plant and facilities for       requirements.
mooring and unloading LNG vessels.                                                             •   facilities for mooring and unloading
                                                Eighty percent of the Terminal capacity            LNG vessels
It is overall 375 mt. long, 115 mt. wide        will be utilized by Edison for a period of
and the main deck is 18 mt. above sea           25 years, to regasify LNG imported from        •   living quarters
level, with the top of the flare tower rising   Qatar’s North Field, as part of a supply       •   a pipeline connected to the mainland
87 mt. above sea level.                         agreement with RasGas II.




  Adriatic LNG Media Relations
  c/o Segest Spa - On behalf of Terminale GNL Adriatico Srl
  alng.press@segest.com - Tel. +39 0532 205455 - Fax +39 0532 209880 - www.adriaticlng.it
Gravity Based Structure                            Regasification plant
The main feature of the Adriatic LNG Terminal
is its concrete Gravity Based Structure (GBS), a
massive construction that rests on the seabed
at a depth of about 29 meters. Made of 90,000
cubic meters of cement and 30,000 tons of
steel reinforcement, the GBS was built at the
Campamento construction site in the Bay of
Algeciras in Southern Spain.

The GBS is 180 mt. long, 88 mt. wide and 47
mt. high: larger than two soccer fields and as
high as a ten-floor building most of which is      The Terminal’s regasification plant is located
under water.                                       on the top of the GBS. It consists of four LNG
                                                   Open-Rack vaporizers that operate using the
LNG storage tanks                                  natural heat of sea water, an energy recovery
                                                   LNG vaporizer that reutilizes heat from the
                                                   gas turbines, two cryogenic compressors, four
                                                   pumps used to lift the LNG from the tanks, and
                                                   five send-out pumps that send the gas through
                                                   the vaporizers and into the external pipeline.

                                                   The plant also includes a number of auxiliary
                                                   facilities, such as gas turbine-powered
                                                   electricity generators and the electrical control
                                                   center.

Inside the GBS are two LNG storage tanks,          Berthing and unloading facilities
each with a capacity of 125,000 cubic meters,
made of steel with 9% nickel to provide cold
temperature performance. Specially designed
using ExxonMobil patented modular technology
they were built at one of the world’s largest
shipyards, in South Korea.

For transport reasons, each tank was designed
in 3 modular parts, which were then shipped
to the Campamento construction site in Spain.
There they were installed in the Terminal’s
Gravity Based Structure using custom-              The terminal also includes facilities for mooring
designed systems and connected to each other       and unloading LNG vessels.
and the regasification plant by special welding
techniques.                                        Key components of the berthing facilities are
                                                   the “Mooring Dolphins” constructed in the
LNG is stored in the tanks at atmospheric          Arsenale shipyard in Venice. These structures
pressure and at the temperature of minus 162° C,   are designed to safely accommodate a wide
in order to keep it in its liquid form.            range of different sized LNG carriers.
                                                                                 veNice

                                                                        RoviGo   cavarzere
                                                                                  shore Base
                                                                    Minerbio                   adriatic LNG
                                                                                                terminal
Each Mooring Dolphin
                                                                      BoLoGNa
structure consists of a
base (reinforced concrete
base slab, walls and roof
slab approximately 7
meters tall), two reinforced
concrete columns rising                              The Terminal crew’s living quarters, on the
above base (approximately 28 meters tall) and        other hand, include a fully staffed kitchen,
a steel truss deck (63 meters long and 8,5           medical facilities, a laundry and heliport, as
meters wide) sitting on top of the columns.          well as communal areas for enjoying meals or
The structures (9.000 tons each) were towed          simply relaxing.
for 50 kilometers from Venice to the Adriatic
Sea, placed on the sea floor on both east and        Pipeline
west ends of the GBS and then connected to           After being reconverted to its original state,
the terminal by steel walkways.                      the gas then flows into the pipeline system,
                                                     connecting the terminal with the mainland and
In addition, for offloading LNG carriers the         then with the national gas distribution network,
terminal has installed specially designed            ready to be distributed to end users.
loading arms that can be connected and
operated in a much wider range of sea states         Designed and built by the Italian company
consistent with an offshore location. These          Snamprogetti, a 30-inch diameter, 40-km long
arms transfer the LNG from the vessel to the         pipeline transports the gas from the terminal
pipes that carry it to the terminal storage tanks.   15 km offshore and then 25 km onshore to the
The entire system was designed and tested            metering station near Cavarzere, in the province
to ensure safe operation during mooring,             of Venice.
unloading and departure operations, even in
severe weather conditions.                           From here, another pipeline, 84-km long and
                                                     owned by Edison Stoccaggio, transfers the gas
Living Quarters                                      to a tie in point with the national distribution
The operating and maintenance staff on the           network near Minerbio, in the province of
Adriatic LNG Terminal are on hand 24 hours           Bologna.
a day, 7 days a week and therefore every
effort has been made to provide them with a          Shore Base
comfortable environment for both working and         The Shore Base is the critical link with the
relaxing.                                            offshore Terminal. All the supporting activities to
                                                     handle materials and personnel to and from the
The specially designed personnel module,             Terminal are coordinated from this location.
housing up to 60 members of staff, is therefore      It is a 5000 square meter facility located along
a self-contained facility that includes living and   the Po di Levante River, in the municipality of
sleeping quarters and the Terminal’s state-of-       Porto Viro (Rovigo).
the-art Control Room. Here, thanks to highly
advanced control communication, video camera         It includes a warehouse for all spare parts and
and radar systems, operators can monitor every       supplies, offices, telecommunications systems
aspect of the Terminal’s operating cycle, from       for constant communication with the Terminal
the storage tanks to the metering station, while     and a dock for the supply boat to the Terminal.
also maintaining contact with the Shore Base,
passing vessels and marine authorities.

				
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