胜利油田压驱开发技术实践与认识  

Practice and understanding of pressure-driven development technology in Shengli Oilfield

作　　者：杨勇[1] 王建[2] 卜亚辉[2] 孙渡 YANG Yong;WANG Jian;BU Yabui;SUN Du(Shengli Oilfield Company,SINOPEC,Dongying Cily,Shandong Province,257000,China;Exploration and Development Research Instiute,Shengli Oilfield Company,SINOPEC,Dongying City,Shandong Province,257015,China)

机构地区：[1]中国石化胜利油田分公司,山东东营257000 [2]中国石化胜利油田分公司勘探开发研究院,山东东营257015

出　　处：《油气地质与采收率》2023年第3期87-93,共7页Petroleum Geology and Recovery Efficiency

基　　金：中国石化科技攻关项目“压驱提速提效开发优化设计技术研究”(P21072-2)和“高含水油藏期油藏流场表征方法研究”(P21017)。

摘　　要：低渗透油藏普遍存在注水井注入能力低或注不进,油井见效困难或不见效且产液量、产油量低,导致油藏开发效果差。为解决低渗透油藏能量补充问题,中国各大油田均开展了攻关研究,形成了包括增压注水、活性剂注水等技术系列,较好地解决了部分渗透率较高、非均质性较弱油藏的能量补充问题,但面对渗透率极低的致密砂岩油藏,仍不能满足开发需求。为攻克低渗透油藏注水难题,大幅度提高水井注入能力,近年来在胜利油田开展了压驱开发技术攻关与实践,从压驱机理、数值模拟、优化设计3方面开展研究,明晰了超压破裂微缝增渗作用机理,建立渗流场-应力场耦合数值模拟方法,形成了不同油藏类型开发技术模式和技术政策。There are usually many injection wells with no orlow injection capacity and production wells with no or poor response,low liquid and oil production in low-permeability reservoirs encounter problems such as,which results in poor development effects ofreservoirs.In order to solve the energy supplement problem oflow-permeability reservoirs,major oilfields in China have carried out key research.A series oftechnologies including high-pressure water injection and active agent water injection have been formed,which can better solvethe energy supplementproblem ofsome reser­voirs with high permeability and weak heterogeneity.However,these technologies still cannot meet the development de­mand oftight sandstone reservoirs with very low permeability.In order to overcome the water injection problem oflow-permeability reservoirs and greatly improve the waterinjection capacity ofinjection wells,pressure-driven development technology has been developed and implemented in Shengli Oilfield in recent years.This research is carried out from three aspects:pressure-driven mechanism,numerical simulation,and optimization design.As a result,the mechanism ofanatonosis ofmicro-fractures caused by overpressure failure is clarified,the seepage field-stress field numerical cou­pling simulation method is established,and the development technology modes and policies for different reservoirs are formed.

关 键 词：低渗透油藏 提高注水能力 压驱开发技术 能量补充 高压注水 压裂裂缝 

分 类 号：TE319[石油与天然气工程—油气田开发工程]