西安石油大学学报（自然科学版）2012，Vol.27Issue(3)：72-75,80,5.
聚驱后超低界面张力泡沫复合驱实验研究
Experimental study on foam compound flooding of ultra-low interfacial tension after polymer flooding
摘要
Abstract
In order to study the result of enhancing recovery factor by ultra-low interfacial tension foam compound flooding after polymer flooding, the interfacial activity and foam stability of binary foaming agent system were studied under Daqing oil reservoir condition by interfacial tension instrument and foam evaluation instrument. The effects of polymer concentration and alternate cycle on flooding result were discussed. The results show that,the ultra-low interfacial tension between crude oil and binary foaming agent system is acquired in the wide concentration range of surfactant and polymer, and that the binary foaming agent system has a very good foam composite index. The binary foam compound flooding can enhance oil recovery factor more than 15%. The shorter the gas/liquid alternate cycle is, the higher the enhanced recovery factor is. The result of the foam compound flooding is the best when gas and liquid is simultaneously injected. Under the same dosage of surfactant and polymer, the binary foam compound flooding is better than that of ternary foam compound flooding,binary liquid flooding and high concentration polymer flooding. And the binary foam compound flooding can avoid alkali corrosion,scaling and other problems.关键词
聚合物驱油/超低界面张力/泡沫复合驱/泡沫综合指数/气液交替周期Key words
polymer flooding/ultra-low interfacial tension/foam compound flooding/composite foam index/gas/liquid alternate cycle分类
能源科技引用本文复制引用
刘宏生..聚驱后超低界面张力泡沫复合驱实验研究[J].西安石油大学学报（自然科学版）,2012,27(3):72-75,80,5.基金项目
国家重点基础研究发展规划"973"项目(编号:2005CB221300) （编号:2005CB221300）
中国石油天然气股份有限公司科技重大专项"聚合物驱后提高采收率技术"(编号:2008E-1210) （编号:2008E-1210）
