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Present by:      Ms. Usa Chankhiao     ID No. 107952
Field of Study: Offshore Technology and Management




Examination Committee:
Assoc. Prof. Dr.Gregory L. F. Chiu     (Chairperson)
Assist. Prof. Dr.Suwat Athichanagorn   (Co-Chairperson)
Dr.Thitisak Boonpramote                (Committee)        April 2010
3
                                           Enhanced Hydrocarbon Production from Gas-Condensate Reservoir.




         1)      Introduction
         2)      Literature Review
         3)      Methodology
         4)      Result & Discussion
         5)      Conclusion & Recommendation
         6)      Question & Answer




Thesis final examination : April 2010                                                      4
Dept: Offshore Technology and Management
                                           Enhanced Hydrocarbon Production from Gas-Condensate Reservoir.




       Statement of the Problem
         › Gas condenses to be liquid causing liquid
            accumulation in the reservoir.
         › Low productivity & Low deliverability of a well.


        Objective of the Study
          › To investigate the feasibility of water injection
             technique for enhancing HC production as
             pressure maintenance method.


Thesis final examination : April 2010                                                      5
Dept: Offshore Technology and Management
6
                                           Enhanced Hydrocarbon Production from Gas-Condensate Reservoir.




    › Decline rate of BHP (Pwf) & reservoir pressure ( P R ) is lower due to
       more pressure maintaining from water injection.

 Bottomhole pressure (psia)                           Avg. reservoir pressure(psia)

                                                                                            10,000 bbl/D
                                   10,000 bbl/D
                                                                                               5,000 bbl/D
                                    5,000 bbl/D
                                                                                               1,000 bbl/D
                                    1,000 bbl/D

      Increasing pressure                                     Increasing pressure




Thesis final examination : April 2010                                                      7
Dept: Offshore Technology and Management
                                           Enhanced Hydrocarbon Production from Gas-Condensate Reservoir.




   Total gas production from the reservoir (BCF)



                                 Increase 8.5 % to max. value




Thesis final examination : April 2010                                                      8
Dept: Offshore Technology and Management
                                           Enhanced Hydrocarbon Production from Gas-Condensate Reservoir.




   Total hydrocarbon production (BOE)




Thesis final examination : April 2010                                                      9
Dept: Offshore Technology and Management
                                            Enhanced Hydrocarbon Production from Gas-Condensate Reservoir.




   Net cash flow (Millions US$)
  10.0
                               Production Phase
   8.0                                                        Net present value (NPV): Millions US$
   6.0                                                       Natural depletion            5.484
   4.0                                                       Water injection              3.259
   2.0
   0.0                                                                                             Period of time
          0     1-12   13-24   25-30   31   32     33        34   35    36     37   38   39           (Month)
  -2.0
                  2 years
  -4.0
  -6.0
                << Development Phase
  -8.0
 -10.0
                         Life of Natural depletion project
 -12.0
               Natural depletion production              Production with water injection

Thesis final examination : April 2010                                                         10
Dept: Offshore Technology and Management
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