文献类型：期刊文献

英文题名：Demulsification of produced liquid from surfactant-polymer flooding

作者：Yang, Jingyi[1];Ban, Wenning[1];Han, Zhongjuan[1];Xu, Xinru[1]

机构：[1]East China Univ Sci & Technol, Dept Petr Proc, Meilong Rd 130, Shanghai 200237, Peoples R China

年份：2019

卷号：40

期号：4

起止页码：487

外文期刊名：JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY

收录：;EI(收录号：20191006605352);WOS:【SCI-EXPANDED(收录号:WOS:000467866400002)】；

语种：英文

外文关键词：Demulsification; emulsion; produced liquid; surfactant-polymer flooding

摘要：Treatment of the produced fluid obtained by surfactant-polymer (SP) flooding is difficult because of the stabilizing effects exhibited by surfactants and polymers on oil-in-water emulsions. For the produced fluid from Xinjiang oilfield, YH-1 (a mixture of 603 and YB-990) showed promising demulsification effects. When the dosage of YH-1 was 20mg/L at 323K, the dewatering efficiency reached no less than 72% even when both surfactant and polymer contcentrations were 1200mg/L. Experimental results showed that YH-1 reduces the water content in crude oil to no more than 20%, which meets the commercial requirements before entering the electronic field. Demulsification performed by thermal-chemical and electric field treatments further reduced the water content in crude oil to less than 2.0%. [GRAPHICS] .