Practice of geology and engineering integration and key technologies for high-yield production with few wells in Shunbei Oil and Gas Field in Tarim Basin
Shunbei Oil and Gas Field in Tarim Basin has a burial depth of 7300-9000 m.The fractured-cavity type reservoirs formed by the fragmentation of brittle strata were developed along high and steep strike-slip fault zones,with extremely high heterogeneity in the intemal fault fractured zone,and great difference of fluid properties.For this type of ultra-deep and complex fault-controlled fractured-cavity oil and gas reservoirs,there are world-class great challenges in high-efficiency well construction,such as high cost of single wells,great difficulty of benefit development,and a lack of experience and technology for reference.Shunbei Oil and Gas Field by starting from the project management,a unique geology and engineering integrated management mode of"five measures for five improvements"has been established in Shunbei Oil and Gas Field,and the seven-element key technology of"high-yield production with few wells"has innovatively been researched.In recent years,a qualitative leap has achieved in geology and engineering integrated practice of high-yield production with few wells,identifying two hundred-million-ton level resource positions in No.4 and No.8 fault zones,adding new proven oil reserves of 1.53× 108t and gas reserves of 1620×108m3,and constructing a production base in No.4 fault zone with a level of 130× 104t after drilling 20 wells in two years.Compared with No.1 fault zone developed in 2016,the success rate of high production wells has increased by 35％,the production capacity of single wells has increased by 316％,and the proven reserves in single wells have increased by 55％,achieving the high-efficiency exploration and benefit development,which has good reference significance for the development of similar oil reservoirs.
Shunbei Oil and Gas Fieldfault-controlled fractured-cavity type oil and gas reservoirintegration of geology and engineeringhigh-yield production with few wells
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