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| 阴离子双子表面活性剂GA8-4-8油水界面张力研究 | |
| 引用本文： | 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). |
| 作者姓名： | 胡小冬 唐善法 葛林文 熊玉娟 邹玮 欧阳向南 |
| 作者单位： | 1. 长江大学石油工程学院,湖北荆州434023;长江大学油气钻采工程湖北省重点实验室,湖北荆州434023 2. 中国石化股份胜利油田分公司孤岛采油厂,山东东营,257000 3. 长江大学石油工程学院,湖北荆州,434023 |
| 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 |
| 摘 要： | 表面活性剂的油水界面张力是评价其提高原油采收率能力的重要指标.采用旋转滴界面张力仪测定了阴离子双子表面活性剂GA8-4-8溶液与油相间的界面张力,考察了油相类别、温度、pH值、盐类和矿化度对其油水界面张力的影响.结果表明,GA8-4-8溶液在不同油相的油水界面表现出不同的界面活性,质量浓度为100 mg/L的GA8 -4 -8溶液与煤油间的油水界面张力达1.4×10-3 mN/m;升高GA8-4-8溶液的温度(30～70℃),有利于其降低油水界面张力；GA8-4-8溶液在pH值为7时,界面张力最低；GA8-4 -8溶液中加入单一无机盐NaCl及高矿化度地层水(质量浓度为50～250 g/L)均能有效提高其降低油水界面张力的能力,单一 CaCl2对其影响较小.GA8 -4 -8溶液在不同矿化度下均具有良好的界面活性,可满足高温、高矿化度油藏条件下提高原油采收率的需要. |
| 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 |
Study on oil-water interfacial tension of anionic Gemini surfactant GA8-4-8 |
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| Hu Xiaodong,Tang Shanfa,Ge Linwen et al. Hu Xiaodong,Petroleum Engineering College,Yangtze University,Jingzhou City,Hubei Province,China.Study on oil-water interfacial tension of anionic Gemini surfactant GA8-4-8[J].Petroleum Geology and Recovery Efficiency,2011,18(6). | |
| Authors: | Hu Xiaodong Tang Shanfa Ge Linwen Hu Xiaodong Petroleum Engineering College Yangtze University Jingzhou City Hubei Province China |
| Affiliation: | Hu Xiaodong,Tang Shanfa,Ge Linwen et al. Hu Xiaodong,Petroleum Engineering College,Yangtze University,Jingzhou City,Hubei Province,434023,China |
| 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 tensionmeter.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 ... |
| Keywords: | anionic Gemini surfactant oil-water interfacial tension oil phase high salinity temperature |
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