水驱油藏注采受益关系及注水效果定量评价  

Quantitative Evaluation of Injection-Production Relation and Water Injection Effect in Water Flooding Reservoir

作　　者：吴明录[1] 陈大伟 李涛[2] 王小剑[2] 赵金玲[2] WU Minglu;CHEN Dawei;LI Tao;WANG Xiaojian;ZHAO Jinling(College of Petroleum Engineering,China University of Petroleum(East China),Qingdao,Shandong 266580,China;Foreign Cooperation Project Department,Dagang Oilfield,Tianjin 300457,China)

机构地区：[1]中国石油大学(华东)石油工程学院,山东青岛266580 [2]大港油田对外合作项目部,天津300457

出　　处：《西安石油大学学报（自然科学版）》2023年第2期84-88,95,共6页Journal of Xi’an Shiyou University（Natural Science Edition）

基　　金：长江学者和高校创新研究团队发展计划项目“复杂油藏开发和提高采收率的理论与技术”(IRT-16R69)。

摘　　要：在压力场基础上采用Pollock方法进行流线追踪,得到渗流场的流线分布;利用隙间速度加权方法将注水井的流量分配给每条流线,得到定量化的流线分布。在此基础上,通过计算注采井之间的流线总流量,得到定量化的注采受益关系及注水井有效注水率;计算注水井每个生产阶段的有效注水率,得到注水井的有效注水率动态曲线。应用实例表明,该方法绝对误差小于5%,对水驱油藏注采受益关系及注水效果定量评价具有现场指导意义。Based on pressure field,the streamline distribution in seepage field is obtained by tracing the streamlines using Pollock method.The quantitative distribution of the streamlines is achieved by allocating the flow rate of water injection wells to each streamline using interstitial velocity weighting method.On this basis,the quantitative injection-production benefit relationship of well patter and the water injection efficiency of water injection wells are obtained by calculating the total flow rate of the streamlines between injection and production wells.The dynamic curves of the water injection efficiency of water injection wells can be obtained by calculating the water injection efficiency of water injection wells in each production stage.Application cases show that the absolute error of this method is less than 5%.The method has important field guidance significance for quantitative evaluation of injection-production benefit relationship and water flooding effect of water flooding reservoirs.

关 键 词：注采受益关系 注水效果 流线 水驱油藏 有效注水率 

分 类 号：TE357.6[石油与天然气工程—油气田开发工程]