摘要
针对目前基于均衡驱替的多层油藏开发理论缺乏定量标准的问题,利用油藏工程方法和渗流力学理论建立了多层油藏均衡驱替目标方程,得到了均衡驱替的特征条件,形成了基于均衡驱替的多层油藏注水调整方法。结果表明:实现均衡驱替时,注入水驱替效率最高;均质油藏与非均质油藏达到均衡驱替时的特征条件不同;数值模拟技术验证了方法的可行性。研究成果在海上某油田进行了矿场应用,井区月产油增加1000 m3,含水率下降5%,增油降水效果显著。
At present,the multi-layer reservoir development theory based on balanced displacement lacks quantitative standard.Therefore,the objective equation of balanced displacement of multi-layer reservoir is established based on reservoir engineering method and percolation mechanics theory,the characteristic conditions of balanced displacement are obtained,and the water injection adjustment method of multi-layer reservoir based on balanced displacement is formed.The research result shows that:when the balanced displacement is achieved,the displacement efficiency of injected water is the highest;the characteristic conditions of balanced displacement of homogeneous reservoir and heterogeneous reservoir are different.The feasibility of the method is verified by numerical simulation.The research result was applied in an offshore oilfield.The monthly oil production of well block is increased by 1000 m3,and the water cut is reduced by 5%.
作者
陈存良
CHEN Cunliang(Bohai Petroleum Research Institute,Tianjin Branch of CNOOC(China)Co.,Ltd.,Tianjin 300459,China)
出处
《西安石油大学学报（自然科学版）》
CAS
北大核心
2020年第4期63-67,73,共6页
Journal of Xi’an Shiyou University（Natural Science Edition）
基金
国家科技重大专项“渤海油田加密调整及提高采收率油藏工程技术示范”(2016ZX05058-001)
中海石油有限公司科技项目“渤海双高油田挖潜关键技术研究”(YXKY-2018-TJ-04)。
关键词
多层油藏
均衡驱替
耗水率
定量标准
multilayer reservoir
balanced displacement
water consumption rate
quantitative criteria
