物理化学学报 >> 2017, Vol. 33 >> Issue (8): 1665-1671.doi: 10.3866/PKU.WHXB201704211

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基于广义阴阳表面活性剂体系对不同黏度区间原油的普适性降黏作用

田茂章1,张帆1,马骋2,马德胜1,蒋凌翔2,薛荣荣2,刘卡尔顿2,黄建滨2,*()   

  1. 1 中国石油勘探开发研究院采收率重点实验室,北京100083
    2 北京大学化学与分子工程学院,分子动态与稳态结构国家重点实验室,北京100871
  • 收稿日期:2017-02-26 发布日期:2017-06-14
  • 通讯作者: 黄建滨 E-mail:JBHuang@pku.edu.cn

Viscosity Reduction of Heavy Oils of Different Viscosities Based on General Cationic/Anionic Surfactant Systems

Mao-Zhang TIAN1,Fan ZHANG1,Cheng MA2,De-Sheng MA1,Ling-Xiang JIANG2,Rong-Rong XUE2,Ka-Er-Dun LIU2,Jian-Bin HUANG2,*()   

  1. 1 Petro China Research Institute of Petroleum Exploration and Development (State Key Laboratory of Enhanced Oil Recovery), Beijing 100083, P. R. China
    2 State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China
  • Received:2017-02-26 Published:2017-06-14
  • Contact: Jian-Bin HUANG E-mail:JBHuang@pku.edu.cn

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摘要：

采用脂肪酸-脂肪胺混合的广义阴阳体系，分别通过水相引入与油相引入两种方式对黏度分布在0.05-155 Pa·s范围内的4种原油进行乳化降黏。针对不同地区原油的组成特点与黏度成因，调整复配体系中脂肪酸-脂肪胺的分子结构，采用不同手段构筑乳状液：对于黏度较低的普通稠油，采用水相引入脂肪酸-脂肪胺复配体系的方法；而对于胶质、沥青质含量极高的超稠油，采用油相引入脂肪酸-脂肪胺复配体系黏的方法。两种方法的降黏率均达到95%-99%，获得较为理想的降黏效果。

关键词: 广义阴阳表面活性剂, 稠油, 乳化, 降黏

Abstract:

Herein, viscosity reduction is achieved for four different kinds of heavy oil based on the "generalized" cationic/anionic surfactants dodecanoic acid and dodecylamine. Two methods are employed in this work to reduce the oil viscosity of the oil. The first involves emulsifying the common heavy oil with an aqueous solution of "generalized" cationic/anionic surfactants, which can lead to an oil-in-water emulsion. The other requires dispersing the heavy oil in a mineral oil solution of "generalized" cationic/anionic surfactants. 95%-95% reduction is achieved for all heavy oils investigated thus treated.

Key words: "Generalized" cationic/anionic surfactant, Heavy oil, Emulsification, Viscosity reduction