低渗透薄互层油藏高含水期剩余油分布研究  

Research on distribution of remaining oil in high water-cut stage of low permeability thin interbed reservoir

作　　者：洪亚飞 孙东升[1] 罗钰涵[1] 唐韵[1] HONG Yafei;SUN Dongsheng;LUO Yuhan;TANG Yun(Exploration and Development Research Institute of Jiangsu Oilfield Company,SINOPEC,Yangzhou 225009,China)

机构地区：[1]中国石化江苏油田分公司勘探开发研究院,江苏扬州225009

出　　处：《复杂油气藏》2022年第2期72-77,共6页Complex Hydrocarbon Reservoirs

基　　金：江苏油田分公司“江苏油田水驱提高采收率潜力评价及对策研究”(JS20008);江苏油田分公司“陈堡油田控递减关键技术研究”(JS20011)。

摘　　要：低渗透薄互层油藏地质特征复杂,油水运动规律认识难度大,措施挖潜实施效果迥异。为进一步提高该类型油藏采收率,综合利用动态监测、油藏工程和数值模拟方法,针对低渗透薄互层油藏W7断块开展了油水运动规律研究,探讨了其高含水期剩余油分布规律,明确了低渗透薄层砂体油藏纵向非均质性与平面储层变化对剩余油富集的控制作用。Low-permeability and thin interbed reservoirs have complex geological properties,the oil-water movement laws are difficult to understand,and the implementation impacts of potential-tapping measures are quite different.In order to improve the recovery factor of this type of reservoir,through a combination of dynamic monitoring,reservoir engineering,and numerical simulation methods,the oil-water movement law was studied for the W7 fault block in the low-permeability thin interbed reservoir,and the distribution law of the remaining oil in the high water-cut period was discussed.The effects of longitudinal heterogeneity and planar reservoir changes on remaining oil enrichment were then clarified.

关 键 词：低渗透 薄互层 高含水 剩余油分布 

分 类 号：TE327[石油与天然气工程—油气田开发工程]