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Gas Lift Optimization Of A Mature Well In Niger Delta,Nigeria Using Incomplete Dataset: A Case Study

Author

Listed:
  • Oghenegare E. Eyankware

    (Department of Petroleum and Gas Engineering, University of Port Harcourt, Nigeria)

  • Idaereesoari Harriet Ateke

    (Department of Petroleum and Gas Engineering, University of Port Harcourt, Nigeria)

  • Okonta Nnamdi Joseph

    (Department of Petroleum and Gas Engineering, University of Port Harcourt, Nigeria)

Abstract

Well DEF, a well located in Niger Delta region of Nigeria was shut down for 7 years. On gearing towards re-starting production, different options such as installation of gas lift mechanism, servicing and installation of packers and valves were evaluated for possibility of increasing well fluid productivity. Hence, this research was focused on optimizing well fluid productivity using PROSPER through installation of continuous gas lift mechanism on an existing well using incomplete dataset; in addition, the work evaluated effect of gas injection rates, wellhead pressure, water cut and gas gravity on efficiency of the artificial lift mechanism for improved well fluid production. Results of the study showed that optimum gas injection rate of 0.6122 MMscf/day produced well fluid production of 264.28 STB/day which is lower than pristine production rate (266 STB/day) of the well. Also, increment in wellhead pressure resulted in decrease in well production, increase in water cut facilitated reduction in well fluid productivity while gas gravity is inversely proportional to well fluid productivity. Based on results obtained, authors concluded that Well DEF does not require gaslift mechanism hence, valves and parkers need to be re-serviced and re-installed for sustained well fluid.

Suggested Citation

  • Oghenegare E. Eyankware & Idaereesoari Harriet Ateke & Okonta Nnamdi Joseph, 2020. "Gas Lift Optimization Of A Mature Well In Niger Delta,Nigeria Using Incomplete Dataset: A Case Study," Engineering Heritage Journal (GWK), Zibeline International Publishing, vol. 4(1), pages 15-18:4, June.
    • Handle: RePEc:zib:zbngwk:v:4:y:2020:i:1:p:15-18
    DOI: 10.26480/gwk.01.2020.15.18
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