隔板理论和DWL技术开发底水油藏临界产量的计算  

Calculation of critical production in reservoirs with bottom water based on barrier theory and DWL technology

作　　者：刘峰[1] 陈小凡[1] 付玉[1] 张静蕾[1] 陆辉[2] 

机构地区：[1]西南石油大学油气藏地质及开发工程国家重点实验室,四川成都610500 [2]大港油田分公司石油工程研究院,天津300280

出　　处：《东北石油大学学报》2013年第6期82-85,10,共4页Journal of Northeast Petroleum University

基　　金：国家科技重大专项(2011ZX050102003);四川省教育厅项目(11ZA016)

摘　　要：针对底水油藏的开发过程中,油井面临底水锥进速度快、临界产量低、无水采油期短和开发成本升高等难题,要取得较好开发效果,须采取合理有效控水消锥措施.根据开发底水油藏的隔板理论和油井井底循环排液(DWL)技术,研究新的底水油藏开发模式,即将底水油藏隔板理论和油井井底循环排液技术相结合的新方法.实例应用结果表明:采用注人工堵剂打隔板和DWL技术共同开采底水油藏时,油井临界产量大幅度增加,较采用单独的人工隔板或DWL技术的开采量分别提高至2.09倍和1.91倍.新方法能够延长油井的无水采油期,提高油井的临界产量,为科学、高效合理开发底水油藏提供依据.During the bottom water reservoir development process,productive oil wells are faced with such problems as bottom water coning,lower critical production,shorter water free oil development period and higher development cost problem.To obtain the better development effect,measures must be taken for appropriate water control deconing.Based on ideas of predecessors and the new 'barrier theory' proposed by predecessors and the down-hole water loop(DWL)technology,a new development model in bottom water reservoir is being investigated.This paper presented a new method which combined bottom water reservoir 'barrier theory' and DWL technology.The example demonstrates that when the artificial agent is injected to form barriers and DWL technique mine bottom water reservoir is applied,the critical production rate of oil well will be greatly increased.Compared with the artificial barrier and DWL technology,the production can be increased by 2.09and 1.91times,respectively.The new method not only prolongs water free oil production period,but also enhances the critical production rate.The new development method provides the theoretical basis for the scientific,efficient and rational exploitation of bottom water reservoir.

关 键 词：底水 底水油藏 临界产量 隔板 井底循环排液 

分 类 号：TE319[石油与天然气工程—油气田开发工程]