油气地质与采收率2011，Vol.18Issue(6)：67-69,3.
阴离子双子表面活性剂GA8-4-8油水界面张力研究
摘要
Abstract
The oil-water interfacial tension of surfactant is an important index to evaluate its ability of enhancing oil recovery. The interfacial tension between anionic Gemini surfactant GA8-4-8 and different oil is measured by Spinning Drop Interface tension-meter. The effect of different oil phase, temperature, pH value, salt and salinity on the oil-water interfacial tension is investigated in this paper. Results show that, the oil-water interfacial between anion Gemini surfactant and different oil phase shows different interface activity, and the interfacial tension between 100 mg/L GA8-4-8 and kerosene is lowed to 1.4×10-3 mN/m. The higher the temperature (30-70℃) , the lower the interfacial tension. The oil-water interfacial tension of GA8-4-8 surfactant is lowest in neutral solution. Adding single NaCI or high salinity formation water to GA8-4-8 surfactant solution is conducive to enhance the ability of lowering the oil-water interfacial tension, but single CaCl2 has less effect on the interfacial tension. Anionic Gemini surfactant GA8- 4-8 has good resistance to salt, and can enhance the oil recovery in high temperature and high salinity reservoirs.关键词
阴离子双子表面活性剂/油水界面张力/油相/高矿化度/温度Key words
anionic Gemini surfactant/oil-water interfacial tension/oil phase/high salinity/temperature分类
能源科技引用本文复制引用
胡小冬,唐善法,葛林文,熊玉娟,邹玮,欧阳向南..阴离子双子表面活性剂GA8-4-8油水界面张力研究[J].油气地质与采收率,2011,18(6):67-69,3.基金项目
中国石油天然气集团公司石油科技中青年创新基金项目“四次采油驱油剂的分子结构设计、合成与性能研究”(2002F70116,2010D-5006-0211). （2002F70116,2010D-5006-0211）
