石油与天然气化工Issue(3)：94-98,5.DOI:10.3969/j.issn.1007-3426.2015.03.020
聚合物驱后凝胶与聚合物交替注入参数优化
Parameter optimization of gel and polymer alternating injection after polymer flooding
摘要
Abstract
Daqing oilfield has entered the extra high water cut development stage after polymer flooding .There are some problems ,such as low degree of water flooding control and big contradic‐tions between layers ,etc .In order to further dip remaining oil ,improve recovery factor and solve the problem of injection‐production exploitation ,on the basis of indoor experiment ,this paper studied pa‐rameter optimization of gel and polymer alternating injection after polymer flooding in view of N 5 test area .The results show that the EOR effect of small slug with more rounds of gel and polymer alter‐nating injection after polymer flooding is better than big slug with less rounds ;best combination of slug is gel (0 .02 PV)+polymer (0 .03 PV) and total injection rounds are 11(total 0 .55 PV) .Under this condition ,the stage recovery can increase about 10% than polymer flooding ,which indicates that the method of gel and polymer alternating injection has the potential of further developing remaining oil after polymer flooding .关键词
聚合物驱/凝胶/聚合物/交替注入/参数优化Key words
polymer flooding/gel/polymer/alternating injection/parameter optimization分类
能源科技引用本文复制引用
张继红,程翘楚,陈喜玲,李理..聚合物驱后凝胶与聚合物交替注入参数优化[J].石油与天然气化工,2015,(3):94-98,5.基金项目
国家自然科学基金项目“聚驱后油藏凝胶与化学剂多轮次交替注入提高采收率方法研究”（51274070）。 （）
