阳离子对稠油乳状液破乳的影响  

Influence of cation on demulsification of thick oil emulsions

作　　者：赵晓非[1] 金鑫[1] 刘立新[1] 刘顺平[2] 于庆龙[3] 杨腾飞[1] 

机构地区：[1]东北石油大学化学化工学院石油与天然气化工省重点实验室,黑龙江大庆163318 [2]辽河油田公司高升采油厂,辽宁盘锦124125 [3]大庆油田有限责任公司第四采油厂,黑龙江大庆163511

出　　处：《化学工业与工程技术》2014年第4期31-35,共5页Journal of Chemical Industry & Engineering

摘　　要：以稠油为研究对象,考察了不同阳离子对稠油乳状液破乳效果的影响。测定了不同种类及含量的无机盐对稠油乳状液脱水率、黏度及油-水界面张力的影响。结果表明:二价离子Ca2+,Mg2+可以促进破乳,一价离子Na+对乳状液破乳影响不大,K+对破乳有一定抑制作用。阳离子促进乳状液破乳能力由大到小依次为:Mg2+,Ca2+,Na+,K+。稠油乳液黏度、界面张力对破乳影响无规律性。The influence of cations on demulsification of thick oil emulsion is investigated. The effects of different kinds and con- tent of inorganic salts on the dehydration rate and viscosity of emulsions and the oil-water interracial tension are studied. The results show that the presence of Mg^2＋and Ca^2＋ can effectively enhance the demulsification, Na＋ almost has no effect on demulsifieation, and K^＋has certain inhibitory effect on demulsifieation. It is verified that the demulsification of the cation down to this order： Mg^2＋, Ca^2＋, Na^2＋, K^＋. Viscosity and interfacial tension of thick oil emulsion have no regularity on the effect about demulsification.

关 键 词：稠油乳状液 阳离子界面张力 破乳 

分 类 号：TE39[石油与天然气工程—油气田开发工程]