甜菜碱活性剂驱油体系对油水界面张力的影响Influence of betaine surfactant flooding system on oil-and-water interfacial tension
宋文玲,方琪,伊庆庵,刘锋
SONG Wen-ling1,FANG Qi1,YI Qing-an2,LIU Feng3(1.Key EOR Lab of MOE
摘要(Abstract)：
通过研究作为驱油表面活性剂的甜菜碱污水溶液与大庆油田第一采油厂脱水原油之间的界面张力,探讨了活性剂浓度、碱的种类和浓度、牺牲剂等因素对体系界面张力的影响,同时研究了岩心静态吸附前后和采出液界面张力值的变化情况。实验结果表明:碱对界面张力的影响较大,该体系表面活性剂中无需加碱;牺牲剂加入到此类表面活性剂的体系中能够很好地发挥作用。
Through studies before,interfacial tension is thought to exist between betaine sewage solution as oil flooding surfactant and dewatered crude oil of No.1 Oil Production Branch Company.The paper explores the influences of following factors:surfactant concentration,alkaline kind and concentration,sacrifice agent and so on upon the interfacial tension of above system.At the same time,the change state of interfacial tension values of both before-and-after core static absorption and produced liquid is discussed.The experimental results show that the influence of alkali is rather serious upon interfacial tension,no need to add alkali in surfactant of above system;the addition of sacrifice agent to this kind of surfactant system can greatly make full use of itself.
关键词(KeyWords)：
驱油表面活性剂;甜菜碱;界面张力;牺牲剂;吸附
oil flooding surfactant;betaine;interfacial tension;sacrifice agent;absorption
基金项目(Foundation): 国家重点基础研究发展计划(“973”计划)项目(2005CB221300)资助
作者(Author):
宋文玲,方琪,伊庆庵,刘锋
SONG Wen-ling1,FANG Qi1,YI Qing-an2,LIU Feng3(1.Key EOR Lab of MOE
参考文献(References)：
- [1]贾忠伟,杨清彦,侯战捷,等.油水界面张力对三元复合驱驱油效果影响的实验研究[J].大庆石油地质与开发,2005,24(5):79-81.
- [2]李干佐,沈强,郑立强.新型驱油用表面活性剂天然混合羧酸盐[J].油田化学,1999,19(1):58-59.
- [3]刘军,徐桂英,李一鸣,等.十二烷基磺基甜菜碱与其它类型表面活性剂的相互作用[J].山东大学学报(理学版),2005,40(3):90-94.
- [4]张志庆,徐桂英,肖莉,等.十二烷基甜菜碱/十二烷基硫酸钠复配体系与原油间的界面张力[J].山东大学学报(理学版),2002,37(2):153-157.
- [5]李道山,刘忠福.牺牲剂降低表面活性剂吸附损失研究[J].大庆石油地质与开发,2000,19(3):20-23.
- [6]吴文祥,闫伟,刘春德.磺基甜菜碱BS11的界面特性研究[J].油田化学,2007,24(1):57-59.