污水回注岩电相驱实验及其应用  

Experimental study of resistivity of cores under produced water re-injection and its application

作　　者：高兴军 宋新民 褚人杰 王立环[2] 刘淑波[2] 

机构地区：[1]中油勘探开发研究院,北京100083 [2]中油吉林油田公司,吉林松原138000

出　　处：《特种油气藏》2006年第2期79-81,共3页Special Oil & Gas Reservoirs

基　　金：中国石油天然气股份有限公司科学研究与技术开发项目"中低孔渗砂岩油藏水淹层剩余油饱和度测井基础研究"(项目编号:040135-3-1);中国石油勘探开发研究院石油科技中青年创新基金"陆相非均质油田水淹层测井响应机理及水淹程度的判别"(项目编号:2005-12-B)资助

摘　　要：针对扶余油田采用污水进行注水开发的特点,运用实验室模拟的方法,开展模拟污水回注情况下的岩电相驱实验,得出不同物性的岩样在不同的注入水驱替的情况下的电阻率变化特征。实验结果显示了L、S和小幅度U型曲线的特征。根据该实验结果,认为对于扶余油田水淹层,电阻率下降是油层水淹的主要特征,不存在通常认为的明显U型曲线的特征,即高阻强水淹的情况,这种情况往往是存在局部高渗强水淹层导致的。In accordance with the feature of waste water flooding in Fuyu oilfield,the experiments for resistivity of cores under produced water reinjection are carried out.The rules of resisitivty changes of cores under different displacement by water injection are obtained.The experimental results show the features of L,S,and low amplitude U shape.It is deduced that for water-flooded formation in Fuyu oilfield,the declining of resistivity is the primary feature of water-out,and U shape feature is not obvious.Highly water-out formation with high resistivity is resulted from the existence of local high permeability zone.

关 键 词：污水回注 水淹层 测井 实验 扶余油田 

分 类 号：TE357.6[石油与天然气工程—油气田开发工程]