双子(Gemini)表面活性剂合成及性能评价  

Synthesis and perfermance evaluation of Gemini surfactant

作　　者：李豪[1] 褚奇[2] 闫书一[1] 房祥华[1] 曹杰[3] 梁渠[1] 

机构地区：[1]成都理工大学材料与化学化工学院,四川成都610059 [2]西南石油大学化学化工学院,四川成都610500 [3]成都理工大学油气藏地质及开发工程国家重点实验室,四川成都610059

出　　处：《断块油气田》2009年第5期110-112,共3页Fault-Block Oil & Gas Field

摘　　要：研究合成了一种阴离子型双醚双苯磺酸盐Gemini表面活性剂,该表面活性剂可在无碱,质量浓度为35mg·L-1条件下,将油水界面张力降至1.2×10-3mN·m-1的超低水平;可有效改变岩石表面润湿性,可将亲油表面改变为弱亲油表面,可将亲水表面改变为弱亲水表面;利用该Gemini表面活性剂配制的三元复合驱(ASP)驱油体系相比常规驱油体系,表现出更高的驱替效率。A new Gemini surfaetant of diether diphenyl sulfonate was synthesized in this study. The Gemini surfactant can reduce the oilwater interracial tension to 1.2×10^-3mN/m under the condition of concentration of Gemini surfactant 35mg/L without alkali. The Gemini surfactant can change the surface wettability of rock effectively. The oil wet surface property can be altered into a weak oil wet surface and the hydrophilic surface property can be changed into a weak hydrophilic surface. The displacement system of alkaline-surfactant-polymer flooding that contains the Gemini surfactant shows a better displacement efficiency than conventional displacement system.

关 键 词：GEMINI表面活性剂 界面张力 润湿性 提高采收率 

分 类 号：TE357.46[石油与天然气工程—油气田开发工程]