三元复合驱采出液用破乳剂研究及其现场试验  

Research on Demulsifier for the Produced Fluid from ASP Flooding and Its Field Test

作　　者：张付生[1] 汪芳[1] 张雅琴[1] 张怀斌[1] 卜家泰[1] 

机构地区：[1]中国石油勘探开发研究院油田化学所,北京100083

出　　处：《精细与专用化学品》2009年第24期30-32,共3页Fine and Specialty Chemicals

摘　　要：我国多数老油田进入开发中后期．原油综合含水大幅度上升，原油产量逐年降低。油田使用多种提高采收率措施来稳定原油产量．三元复合驱是继聚合物驱后的一项提高原油采收率的新技术。可比水驱采收率提高20％以上．已逐渐成为油田增产稳产的关键技术之一。Ademulsifier with preferred molecular weight was prepared according to the demulsification mechanism and the characteristics of components and structures of the produced fluid from ASP flooding of Xing2 block of Oil Product No4 of Daqing Oilfield. The field test showed that DX demulsifier had an excellent and stable demulsification performance to the above -mentioned produced fluid. After treatment with 30mg/L DX demulsifer, the water in emulsified oil was less than 20% (meeting electric dehydration) , oil content in sewage was less than 500mg/L and it was 100mg/L at outlet of the 700m3 settlement tank, which lay a good foundation for sewage treatment.

关 键 词：三元复合驱 复合驱采出液 现场试验 破乳剂 原油采收率 原油产量 开发中后期 聚合物驱后 

分 类 号：TE357.46[石油与天然气工程—油气田开发工程] TE624.1