三元复合体系动态界面张力对驱油效率的影响  

The Influence of Dynamic Interfacial Tension of ASP System on Oil Displacement Efficiency

作　　者：张晓彤[1] 郭春萍[2] 袁圆[3] 郭雨新 潘兴双 李雪[3] 

机构地区：[1]东北石油大学石油工程学院,大庆163318 [2]大庆油田勘探开发研究院,大庆163712 [3]东北石油大学提高采收率教育部重点实验室,大庆163318 [4]辽河油田兴隆台采油厂,盘锦124000 [5]大庆头台油田开发有限责任公司,大庆166500

出　　处：《科学技术与工程》2014年第36期180-182,203,共4页Science Technology and Engineering

摘　　要：采用贝雷岩心开展三元体系界面张力与驱油效果之间关系的实验研究,实验结果表明,三元复合体系动态界面张力最低值越低,界面张力下降速度越快,超低界面张力作用时间越长,化学驱提高驱油效率越高。提出用超低界面张力作用指数S作为评价复合体系界面张力性能的指标,建立超低界面张力作用指数与驱油效率的关系式,得出体系界面张力和驱油效率均满足现场实际要求的复合体系的标准为S>1 000。Experimental research was carried out to study the relationship between interfacial tension of ASP system and oil displacement effect by Berea cores.Experimental results show that,lower dynamic interfacial tension of ASP system,faster decline rate of interfacial tension and longer ultra-low interfacial tension action time contribute to a higher oil recovery of chemical flooding.Ultra-low interfacial tension effect index was proposed as an evaluation index of the interfacial tension of composite system.In addition,the relationship between ultra-low interfacial tension index and oil displacement efficiency was established.The relationship shows that,the standard of composite system whose interfacial tension and oil displacement efficiency both meet the actual requirements of oilfield is S 〉 1 000.

关 键 词：界面张力 平衡界面张力 动态界面张力 超低界面张力作用指数 驱油效率 

分 类 号：TE357.45[石油与天然气工程—油气田开发工程]