| 硫酸盐型孪连表面活性剂的界面性能 |
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| 引用本文： | 刘平,吕成远,李阳.硫酸盐型孪连表面活性剂的界面性能[J].精细化工,2011,28(12):1169-1172. |
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| 作者姓名： | 刘平 吕成远 李阳 |
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| 作者单位： | 1. 中国石化石油勘探开发研究院,北京,100083
2. 中国石化股份有限公司,北京,100029 |
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| 基金项目： | 中石化科技攻关项目(P10092)~~ |
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| 摘 要： | 考察了自制的双直链烷基硫酸盐型孪连表面活性剂的界面性能和驱油性能。结果表明,双直链烷基硫酸盐型孪连表面活性剂的CMC在10-5～10-6 mol/L;随着表面活性剂浓度的增加,界面张力达到平衡时所需要的时间明显延长;随着连接基团碳链长度的增加,油水界面张力先增大再减小;该类孪连表面活性剂具有非常好的抗一价盐二价盐的能力;用2C13-C2-2SO4Na作为驱油剂进行驱油实验时,可以使采收率在水驱基础上提高5%以上,具有比较好的驱油效果。
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| 关 键 词： | 孪连表面活性剂 临界胶束浓度 界面张力 抗盐性 采收率 |
Interfacial Performance of Di-n-alkyl Disulfate Surfactants |
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| LIU Ping
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L Cheng-yuan
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LI Yang.Interfacial Performance of Di-n-alkyl Disulfate Surfactants[J].Fine Chemicals,2011,28(12):1169-1172. |
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| Authors: | LIU Ping L Cheng-yuan LI Yang |
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| Affiliation: | LIU Ping1,Lü Cheng-yuan1,LI Yang2(1.Exploration and Production Research Institute,SINOPEC,Beijing 100083,China,2.Department of Oilfield Exploration and Development,China Petroleum & Chemical Corporation,Beijing 100029,China) |
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| Abstract: | The interfacial performance and oil displacement of the self-made di-n-alkyl disulfate surfactants were studied.The results show that the CMC values of the surfactants were in the range of 10-5 to 10-6 mol/L.The time taken for the interfacial tension to reach equilibrium significantly extended with the increase of Geminis concentration.As the spacer length increased,the interfacial tension first increased to a certain point and then decreased.The Geminis displayed outstanding salt resistance.2C13-C2-2SO4Na,... |
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| Keywords: | Gemini surfactant CMC interfacial tension salt tolerance EOR |
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