Research and application of deep profile control & oil displacement by polymer gel-surfactant in high salinity oilfield
A polymer gel-surfactant composition profile control technology has been developed, basing on the high salinity, especially high levels of Ca2+, Mg2+ in the injection water of the Hongshanzui oilfield.The construction parameters of deep profile control & oil displacement have been studied by performing core displacement experiments.The results show that the ratio of polymer gel slug and active agents slug is 1:0.3, the best ratio of strong polymer gel, medium polymer gel and weak polymer gel slug is 4:3:3.The way of combination is stronger gel slug + surfactant slug + in strong gel slug + weak gel slug + surfactant slug + strong gel sealing slug.The application effect of this technology in Hongshanzui oilfield is remarkable, the 12 tune flooding group daily oil production rose from 85t to 130t and the liquid water content decreased from 75% to 67%.
deep profile control oil displacement polymer gel surfactant salt tolerance
Luo Yue Wang Ding Bai Lei Zha Kejian
College of Chemistry and Environmental Engineering, Yangtze University, Jingzhou 434023, PR China Research Institute of Petroleum Exploration and Development, Xinjiang Oilfield Company,PetroChina, K
国际会议
湖北荆州
英文
491-495
2013-05-18（万方平台首次上网日期，不代表论文的发表时间）