油气地质与采收率2012，Vol.19Issue(5)：57-60,4.
面积劈分—叠加法预测聚合物驱后剩余油分布
Forecast of remaining oil distribution after polymer flooding by area-split and superposition method
摘要
Abstract
Until the end of 2011 , oil recovery after polymer flooding is about 53% in China. Residual oil reserves after polymer flooding own pretty high exploitation potential. In order to extract the amount of remaining oil efficiently, it's necessary to study residual oil law and its potential distribution after polymer flooding. For that reason, area-split and superposition method has been put forward specifically, which can be utilized in forecast and studying on residual oil potential distribution of single well and whole reservoir after polymer flooding. Then, the key reservoir in the north of Daqing placanticline is selected as a typical object. After that, the residual oil distribution law of 37 wells after polymer flooding is studied respectively. Finally, based on the changes of recovery degree, 3 levels of single well's residual oil potential have been divided after polymer flooding, which can be classified as high, medium and low. According to planar distribution of residual oil geological reserves, 2 enrichment areas after polymer flooding, which are mainly located in prime sand body and weak well pattern controlling parts, are pointed out as well. The research process and results can provide certain methodological and theoretical references on the forecasting of residual oil and the rational adjustment and potential tapping after polymer flooding.关键词
聚合物驱后/剩余油/分布规律/面积劈分—叠加法/采出程度Key words
post-polymer flooding/residual oil/distribution law/area splitting and superposition/recovery degree分类
能源科技引用本文复制引用
王正波,叶银珠,王强,朱友益..面积劈分—叠加法预测聚合物驱后剩余油分布[J].油气地质与采收率,2012,19(5):57-60,4.基金项目
国家重大技术装备研制和重大产业技术开发专项"改善高含水油田后期水驱效果技术开发和应用"(05-06专项课题),中国石油天然气股份有限公司科学研究与技术开发项目"高含水提高采收率关键技术研究"(06-02A-01-02). （05-06专项课题）
