油气地质与采收率2013,Vol.20Issue(2):91-94,98,5.
改善聚合物驱效果的过程控制技术——以河南油区双河油田北块H3Ⅳ1-3层系为例
Study on process control technology to improve effect of polymer flooding-case of north block H3Ⅳ1-3 strata in Shuanghe oilfield
摘要
Abstract
Since the start of "Eleventh Five-Year Plan", the polymer flooding units in Henan oilfield have been in ultra-high water cut stage before injecting polymer, which has resulted in longer responding time. It is the key to maximize the proportion of effective corresponding wells, effective thickness and effective multiples in dynamically adjustment of polymer flooding. With methods of reservoir engineering, numerical simulation and field test, policy limits of polymer flooding dynamic adjustment are studied in this paper. Also, according to different stages of responding of polymer flooding and different factors that affect the performance of corresponding wells, the process control technology of improving the effect of polymer flooding is studied, including reasonable production and injection rate allocation technology, edge water control technology, polymer concentration differences adjustment technology, polymer channeling control technology, long term closure layer with high water cut evaluation and utilization technology and polymer flooding moderate extracting technology. The effect of application of the six process control technology in Shuangbei H3Ⅳ 1-3 series of strata is significant and the effect of actual oil increase is better than numerical simulation forecast. When 0.56 PV polymer is injected into the reservoir, it can improve recovery by 2.83%.关键词
特高含水期/聚合物驱/影响因素/改善效果/过程控制/双河油田Key words
ultra-high water cut stage/ polymer flooding/ influencing factors/ effect improvement/ process control/ Shuanghe oilfield分类
能源科技引用本文复制引用
苏建栋,黄金山,邱坤态,孙宜丽,李岩..改善聚合物驱效果的过程控制技术——以河南油区双河油田北块H3Ⅳ1-3层系为例[J].油气地质与采收率,2013,20(2):91-94,98,5.基金项目
中国石化集团公司科技攻关项目"双河油田开发后期提高采收率技术综合应用研究"(P07067). (P07067)