文献类型：期刊文献

中文题名：多功能破乳剂用于复合驱重质原油采出液高效分离的研究

英文题名：Multi-functional demulsifiers for high efficient separation of heavy crude SP flooding produced fluid

作者：乔月[1];李振泉[2];杨敬一[1];宋新旺[2];祝仰文[2];徐心茹[1]

机构：[1]华东理工大学化工学院,上海200237;[2]中石化股份有限公司胜利油田分公司地质科学研究院,山东东营257015

年份：2016

卷号：36

期号：6

起止页码：67

中文期刊名：现代化工

外文期刊名：Modern Chemical Industry

收录：CSTPCD;;Scopus;北大核心:【北大核心2014】；CSCD:【CSCD2015_2016】；

基金：国家"863"科技计划项目(2008AA092801)

语种：中文

中文关键词：重质原油;复合驱;采出液;海上油田;多功能破乳剂

外文关键词：heavy crude; SP flooding; produced fluid; offshore oil field; multi-functional demulsifier;

摘要：针对海上油田重质原油SP复合驱采出液多功能破乳剂的合成和应用进行了研究。以聚醚BH-51与丙烯酸酯化反应得到具有C=C结构的YE化合物,在YE中引入阴离子基团—SO3^-可以降低沥青质间的结合强度,从而降低界面强度;引入阳离子基团—NH4^＋可以中和原油-水界面的负电荷使扩散层变薄。优化合成条件得到FC新型高效破乳剂,通过超声波和电场对重质原油SP复合驱采出液进行强化破乳,在驱油剂质量浓度为400～1 600 mg/L条件下,原油含水量小于1%,脱出水中油的质量浓度都小于35.0 mg/L,可显著缩短破乳时间和减少设备体积,适应高驱油剂浓度下重质原油复合驱采出液快速破乳的要求。
The multi-functional demulsifiers are synthesized and applied to treat the SP flooding produced fluid of heavy crude in offshore oil field. YE compounds with C=C structure are obtained through esterification by using BH-51 and AA as raw materials. Anionic —SO3^- group is introduced to reduce the binding strength between asphaltenes and the resultant interface strength. Cationic —NH4^＋ group is incorporated to neutralize the negative charges at the oil-water boundary surface and get a thinner layer. The optimal and efficient demulsifier is then used to treat the SP flooding produced liquid under electro-ultrasonic condition. The water content in the resulting separated oil is less than 1% and the oil content in the separated water is less than 35. 0 mg / L,when the concentrations of oil displacement agent is in the range of 400- 1 600 mg / L. This synthesized demulsifier not only shortens the de-emulsification time,reduces equipment size,but also meets the requirement for rapid de-emulsification of SP flooding produced liquids of heavy crude with high content of oil displacement agent.