| 三次采油用表面活性剂结构对油/水界面性能的影响 |
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| 引用本文： | 李文宏,张永强,范伟,周雯菁,翟洪志.三次采油用表面活性剂结构对油/水界面性能的影响[J].日用化学品科学,2014(9):56-58. |
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| 作者姓名： | 李文宏 张永强 范伟 周雯菁 翟洪志 |
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| 作者单位： | 中石油长庆油田分公司勘探开发研究院;低渗透油气田勘探开发国家工程实验室;武汉大学化学与分子科学学院;北京紫晶石精细化工有限公司; |
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| 摘 要： | 测定了几种不同分子结构的磺酸盐类阴离子表面活性剂、两性表面活性剂和非离子表面活性剂水溶液与国内某油田原油间的界面张力。结果表明:磺酸盐类表面活性剂降低油水界面张力的能力相对较高,且磺酸盐的烷链长度、芳环种类对界面张力的影响较大,调整磺酸盐的分子结构可以使油水界面张力降低到10~(-2)mN/m数量级;醇/酚醚类非离子表面活性剂以及两性表面活性剂仅能使油水界面张力降低至0.1 mN/m~10 mN/m数量级。
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| 关 键 词： | 表面活性剂 三次采油 原油采收率 界面张力 |
Effects of surfactants structures for tertiary oil recovery on the oil/water interfacial properties |
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| Affiliation: | LI Wen-hong, ZHANG Yong-Qiang, FAN Wei, ZHOU Wen-jing, ZHAI Hong-zhi (1.Exploration and Development Research Institute of PCOC, Xi＇an, Shaanxi 710021, China; 2. Low Permeability Oil and Gas Field Exploration and Development National Engineering Laboratory, Xi＇an, Shaanxi 710021, China; 3. College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, China; 4.Beijing Zijingshi Fine Chemical Technology Co., Ltd., Beijing 100123, China) |
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| Abstract: | The effects of anionic type, zwitterionic type and nonionic surfactants on the crude oil/water interracial tensions were measured. It was found out that the alkyl sulfonates type anionic surfaetants were superior to others in reducing the crude oil/water interfacial tension. Moreover, their molecular structures, such as the hydrophobic chain length and the incorporated aromatic types, influenced the interracial properties so significantly that the interracial tension was reduced to 10-2nN/m by a single surfactant with proper structure. However, those nonionic and zwitterionic type surfactants reduced only the value to about 0. 1mN/m - 10mN/m. |
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| Keywords: | surfactant tertiary oil recovery recovery factor interfacial tension |
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