双河油田北块Ⅰ5、Ⅱ1-3层系聚合物驱后剩余油分布特征  

Residual oil distribution characteristics after polymer flooding in north blockⅠ5 andⅡ1-3 of Shuanghe oilfield

作　　者：李洪生[1] 钟玉龙[2] 梁杨[1] 白新潮[3] 王艳霞[1] 张连锋[1] 

机构地区：[1]中国石化河南油田分公司勘探开发研究院,河南南阳473132 [2]中国石化河南油田分公司开发事业部 [3]中国石化河南油田分公司第二采油厂

出　　处：《石油地质与工程》2010年第4期54-57,共4页Petroleum Geology and Engineering

摘　　要：应用精细油藏数值模拟方法、密闭取心方法,结合油藏动态分析、动态资料测试等方法,分别从平面、纵向和层内对双河油田北块Ⅰ5、Ⅱ1-3层系目前剩余油进行三维定量化描述。结果表明:平面上剩余储量主要集中在含水大于90%的区域内,在层系边角部位、低渗透部位以及井网不完善部位剩余油饱和度较高;纵向上采出程度差异大,Ⅱ3层采出程度高,但剩余储量相对多,Ⅰ5、Ⅱ2层采出程度不均匀,剩余储量相对较少;层内剩余油集中在厚油层顶部及低渗透层段,取心井试油结果与研究结果一致。By applying fine reservoir numerical simulation and sealed coring methods,in combination with reservoir dynamic analysis and dynamic data testing,3D quantitative description on residual oil in vertical,horizontal directions and interlayer of north blockⅠ5 andⅡ1 - 3 of Shuanghe oilfield has been carried out.The results indicate in horizontal direction, the residual reserves is mainly within the area with water cut greater than 90%and in the position of layer margins, of low permeability and imperfect well pattern,its saturation is higher;in vertical direction,the residual oil is relatively more inⅡ3 thanⅠ5 andⅡ2 due to different recovery degree,while in interlayer,the residual oil is mainly distributed at the top of thick reservoir and low permeability section, and the formation testing results of cored well is in agreement with the study results.

关 键 词：双河油田 聚合物驱 剩余油 数值模拟 密闭取心 含水率 采出程度 

分 类 号：TE313.1[石油与天然气工程—油气田开发工程]