AN APPROACH TO OPTIMIZE DEVELOPMENT OF SHALE GAS RESERVOIRS
Tsiu Ping – post-graduate student, Department for the Development and Operation of Gas and Gas Condensate Fields, Gubkin Russian State University of Oil and Gas (National Research University), qiuping2014@gmail.com qiuping2014@gmail.com
Yakushev Vladimir Stanislavovich – Doctor of Geological and Mineralogical Sciences, professor of the Department of Development and Operation of Gas and Gas Condensate Fields, Gubkin Russian State University of Oil and Gas (National Research University), yakushev.v@gubkin.ru yakushev.v@gubkin.ru
УДК 622.24
Key words: development of shale gas reservoirs, horizontal wells, multi-stage hydraulic fracturing, optimization, NPV, numerical simulation.
In this article, the configuration of horizontal wells with multi-stage fracturing for the development of shale gas formation Longmaxi was optimized. The optimal values of configuration factors were obtained according to various criteria. By the criterion of maximizing the performance of horizontal well, the optimal orientation of lateral wellbore is the direction of minimum horizontal stress; the optimal hydraulic fracture conductivity is 10 to 50 mD•m depending on the number of perforation clusters at each frac-stage. By the criterion of maximizing the NPV, the optimal horizontal wellbore length is 1400 m; the optimal number of frac-stages is 5 or 9 stages per 1000 m of horizontal section depending on the number of perforation clusters at each frac-stage; the optimal hydraulic fracture length is 500 – 600 m. These optimized values are unique to Longmaxi formation, but this optimization method is universal. The method of configuration optimization of horizontal wells with multi-stage fracturing can be recommended to optimize the development of other shale gas reservoirs.
AN APPROACH TO OPTIMIZE DEVELOPMENT OF SHALE GAS RESERVOIRS
Tsiu Ping – post-graduate student, Department for the Development and Operation of Gas and Gas Condensate Fields, Gubkin Russian State University of Oil and Gas (National Research University), qiuping2014@gmail.com
Yakushev Vladimir Stanislavovich – Doctor of Geological and Mineralogical Sciences, professor of the Department of Development and Operation of Gas and Gas Condensate Fields, Gubkin Russian State University of Oil and Gas (National Research University), yakushev.v@gubkin.ru
Key words: development of shale gas reservoirs, horizontal wells, multi-stage hydraulic fracturing, optimization, NPV, numerical simulation.
In this article, the configuration of horizontal wells with multi-stage fracturing for the development of shale gas formation Longmaxi was optimized. The optimal values of configuration factors were obtained according to various criteria. By the criterion of maximizing the performance of horizontal well, the optimal orientation of lateral wellbore is the direction of minimum horizontal stress; the optimal hydraulic fracture conductivity is 10 to 50 mD•m depending on the number of perforation clusters at each frac-stage. By the criterion of maximizing the NPV, the optimal horizontal wellbore length is 1400 m; the optimal number of frac-stages is 5 or 9 stages per 1000 m of horizontal section depending on the number of perforation clusters at each frac-stage; the optimal hydraulic fracture length is 500 – 600 m. These optimized values are unique to Longmaxi formation, but this optimization method is universal. The method of configuration optimization of horizontal wells with multi-stage fracturing can be recommended to optimize the development of other shale gas reservoirs.
