Simulation Study on Water-Drive Gas Reservoir Performance

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2006 Vol.43, Issue 4 Preview Page Next Page

Simulation Study on Water-Drive Gas Reservoir Performance 대수층이 존재하는 가스저류층의 생산성 거동에 대한 시뮬레이션 연구: 이원석, 김세준, 남상호
Won Suk Lee, Se-Joon Kim and Sang Ho Nam

31 August 2006. pp. 282-292

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Abstract

Water-drive gas reservoirs can be managed to significantly improve their recovery, and in this process detailed reservoir simulation is necessary to model the dynamics of a gas/aquifer system and predict the productivity of the reservoir. In this study, the sensitivities of reservoir fluids, rock properties, and aquifer characteristics were analyzed and reservoir management strategies for improving recovery were simulated. In order to effectively manage a reservoir, it is important to lower reservoir pressure near depletion process. And increasing water production rate is more effective than increasing gas production rate in lowering reservoir pressure and improving recovery. The results of this study can be utilized in the management of gas and gas-condensate reservoir with strong aquifer.

Keywords

Aquifer

Gas reservoir

Simulation

Reservoir management

대수층이 존재하는 가스 저류층의 경우 효과적 저류층 관리에 의한 회수율 제고가 가능하며, 이를 위해 저류층 시뮬레이션을 통한 정확한 생산 메커니즘의 이해 및 생산성 예측 과정이 필수적이다. 이 연구에서는 시뮬레이션을 위한 적절한 시스템을 설정하여 저류 유체, 암석 물성 및 대수층 특성 등에 따른 민감도를 분석하였으며, 회수율 증진을 위한 저류층 관리 기술을 적용하여 저류층의 거동 특성을 관찰하였다. 그 결과 자연 고갈에 가깝도록 압력을 적절히 감소시키는 것이 생산성 향상에 있어 매우 중요한 인자임을 알 수 있었으며, 저류층 관리를 위한 방법으로는 가스 생산량 증가보다 물 생산량 증가에 의한 저류층 압력 감소 방법이 가장 효과적인 것으로 분석되었다. 이러한 과정을 통해 도출된 결과 및 관리 기술들은 향후 대수층의 영향이 큰 가스 및 가스-컨덴세이트 저류층 관리에 있어서 유용하게 활용될 수 있을 것으로 생각된다.

키워드

대수층

가스 저류층

시뮬레이션

저류층 관리기술

References

Carter, R.D. and Tracy, G.W., 1960, “An Improved Method for Calculating Water Influx,” JPT, Dec., pp. 58-60.
Fetkovitch, M.J., 1971, “A Simplified Approach to Water Influx Calculation - Finite Aquifer Systems,” JPT, July, pp. 814-828.
Hones, R.E., Jirik, L.A. and Hower, T.L., 1993, “Production Management Techniques for Water-Drive Gas Reservoirs - Field #2; Offshore Gulf Coast, Over-Pressured Dry Gas Reservoir,” GRI Topical Report No. GRI-5090-212-1991.
Hower, T.L., 1993, “Production Management Techniques for Water-Drive Gas Reservoirs - Field #1; Onshore Gulf Coast, Over-Pressured High Yield Condensate Reservoir,” GRI Topical Report No. GRI-5090-212-1991.
Hower, T.L. and Uttley, S.J., 1993, “Production Management Techniques for Water-Drive Gas Reservoirs - Field #3; Offshore Gulf Coast, Normally Pressured Dry Gas Reservoir,” GRI Topical Report No. GRI-5090-212-1991.
Katz, D.L, Legatski, M.W., Tek, M.R., Gorring, L. and Neilson, R.L., 1966, “How Water Displaces Gas from Porous Media,” Oil and Gas Journal, Jan. 10, pp. 55-60.
Keelan, D.K. and Pugh, V.J., 1975, “Trapped Gas Saturations in Carbonate Formations,” SPEJ, Apr., pp. 149-160.
Kenyon, D.E. and Behie, G.A., 1987, “Third SPE Comparative Solution Project: Gas Cycling of Retrograde Condensate Reservoirs,” JPT, pp. 981-997.
Schafer, P.S, Hower, T. and Owens, R.W., 1993, “Managing Water-Drive Gas Reservoirs,” Gas Research Institute.

Information

Publisher :The Korean Society of Mineral and Energy Resources Engineers
Publisher(Ko) :한국자원공학회
Journal Title :Journal of the Korean Society for Geosystem Engineering
Journal Title(Ko) :한국지구시스템공학회지
Volume : 43
No :4
Pages :282-292

[1] Carter, R.D. and Tracy, G.W., 1960, “An Improved Method for Calculating Water Influx,” JPT, Dec., pp. 58-60.

[2] Fetkovitch, M.J., 1971, “A Simplified Approach to Water Influx Calculation - Finite Aquifer Systems,” JPT, July, pp. 814-828.

[3] Hones, R.E., Jirik, L.A. and Hower, T.L., 1993, “Production Management Techniques for Water-Drive Gas Reservoirs - Field #2; Offshore Gulf Coast, Over-Pressured Dry Gas Reservoir,” GRI Topical Report No. GRI-5090-212-1991.

[4] Hower, T.L., 1993, “Production Management Techniques for Water-Drive Gas Reservoirs - Field #1; Onshore Gulf Coast, Over-Pressured High Yield Condensate Reservoir,” GRI Topical Report No. GRI-5090-212-1991.

[5] Hower, T.L. and Uttley, S.J., 1993, “Production Management Techniques for Water-Drive Gas Reservoirs - Field #3; Offshore Gulf Coast, Normally Pressured Dry Gas Reservoir,” GRI Topical Report No. GRI-5090-212-1991.

[6] Katz, D.L, Legatski, M.W., Tek, M.R., Gorring, L. and Neilson, R.L., 1966, “How Water Displaces Gas from Porous Media,” Oil and Gas Journal, Jan. 10, pp. 55-60.

[7] Keelan, D.K. and Pugh, V.J., 1975, “Trapped Gas Saturations in Carbonate Formations,” SPEJ, Apr., pp. 149-160.

[8] Kenyon, D.E. and Behie, G.A., 1987, “Third SPE Comparative Solution Project: Gas Cycling of Retrograde Condensate Reservoirs,” JPT, pp. 981-997.

[9] Schafer, P.S, Hower, T. and Owens, R.W., 1993, “Managing Water-Drive Gas Reservoirs,” Gas Research Institute.

Journal of the Korean Society of Mineral and Energy Resources Engineers ISSN:2288-0291(Print) 2288-2790(Online) 한국자원공학회지

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