胜利油田水驱开发技术进展及发展方向  

Progress and direction of water flooding development technologies in Shengli Oilfield

作　　者：王建[1] 刘丽杰 吴义志[1] 刘海成[1,2] 贾元元 宋志超[1] 陶仕玉 WANG Jian;LIU Lijie;WU Yizhi;LIU Haicheng;JIA Yuanyuan;SONG Zhichao;TAO Shiyu(Exploration and Development Research Institute,Shengli Oilfield Company,SINOPEC,Dongying City,Shandong Province,257015,China;School of Energy Resources,China University of Geosciences(Beijing),Beijing City,100083,China)

机构地区：[1]中国石化胜利油田分公司勘探开发研究院,山东东营257015 [2]中国地质大学(北京)能源学院,北京100083

出　　处：《油气地质与采收率》2024年第5期99-112,共14页Petroleum Geology and Recovery Efficiency

基　　金：中国石化重点科技项目“多层系高含水油藏大幅度提高采收率关键技术”(P22021),“套管钻井井网重构技术研究与工程应用”(P24089),“高含水老油田流场表征与开发优化调控技术研究”(P21017),“油藏地球物理软件集成及示范应用”(P24038)和“特低渗透油藏未开发储量效益开发关键技术”(P24021)。

摘　　要：水驱油藏是中国东部老油田开发的主体,经过长期注水开发已整体进入特高含水期,室内研究及矿场实践表明,仍有大幅度提高采收率的潜力,但受储层非均质性和开发动态非均质性影响,科学开发和效益开发难度加大,亟需攻关进一步提高采收率技术。整装油藏针对特高含水后期极端耗水严重、效益稳产及水驱提高采收率难等问题,深化了极端耗水层带理论,创新形成了层系近阻重组开发技术、特高含水油藏矢量开发技术和特高含水后期流场调整开发技术,实现了控耗水、降递减,平均采收率为43.7%;断块油藏针对断层多、断块小的特点及特高含水期剩余油规模小、动用难的问题,深化剩余油富集规律及水动力调控机制认识,创新形成了人工边水驱、立体开发等主导开发技术系列,提高了储量控制和水驱动用程度,平均采收率为29.4%,支撑了断块油藏效益稳产;低渗透油藏针对储层物性差、有效建驱难等问题,持续开展非线性渗流机理和压驱开发机理研究,攻关配套开发技术,不断拓宽开发界限,创新形成特低渗透油藏仿水平井注水、一般低渗透油藏井网适配提高采收率、低渗透-致密油藏压驱注水等差异开发技术系列,平均采收率为15.7%,实现了低渗透油藏提速提效开发。通过以上技术进步,实现了特高含水期水驱油藏的效益开发。结合不同类型油藏开发特点及面临形势,对水驱油藏进一步提高采收率提出了下步发展方向。Water-flooding reservoirs are the mainstay in developing mature oilfields in eastern China,and they have entered the ultra-high water cut stage as a whole after long-term water injection development.Laboratory studies and field practice show that there is still potential for significantly enhancing oil recovery.However,the difficulty of scientific and efficient development has in-creased due to the heterogeneity of reservoirs and development dynamics,and further research is needed to enhance oil recovery technology.Uncompartmentalized reservoirs face challenges such as severe extreme water consumption in the later stage of ultra-high water cut,affecting stable production and enhanced oil recovery through water flooding.Therefore,the theory of high water consumption zones was deepened,and the development technology of near-resistance layer recombination,the vector development technology of ultra-high water cut reservoirs,and the development technology of flow field adjustment in the later stage of ultra-high water cut were developed through innovation,achieving water consumption control and reduction,with an average oil recov-ery of 43.7%.In response to the characteristics of fault block reservoirs with numerous faults and small fault blocks,as well as the challenges of small remaining oil reserves and difficult exploitation during the ultra-high water-cut stage,understanding of the accu-mulation patterns of remaining oil and hydrodynamic regulation mechanisms was deepened.A series of leading development tech-nologies were developed through innovation,such as artificial peripheral water flooding and stereoscopic development,improving reserve control and water flooding efficiency,with an average oil recovery of 29.4%.These technologies have supported the stable and profitable production of fault block reservoirs.Given the poor physical properties of low-permeability reservoirs and the diffi-culty of effective water flooding,nonlinear flow mechanisms and pressure flooding development mechanisms were researched,sup-p

关 键 词：水驱 剩余油 开发理论 开发技术 提高采收率 发展方向 

分 类 号：TE341[石油与天然气工程—油气田开发工程]