高等学校化学学报 ›› 1999, Vol. 20 ›› Issue (5): 759.

• 论文 • 上一篇    下一篇

破乳剂对复合驱乳状液的破乳机理研究

康万利, 单希林, 龙安厚, 李俊刚   

  1. 大庆石油学院石油工程系, 安达 151400
  • 出版日期:1999-05-24 发布日期:1999-05-24
  • 通讯作者: 康万利,男,35岁,博士,高级工程师.
  • 作者简介:康万利,男,35岁,博士,高级工程师.
  • 基金资助:

    “九·五”国家重点科技攻关项目资助

Studies on Demulsification Mechanism of Demulsifier for the Three compound Combination Flooding Effluent Emulsions

KANG Wan-Li, SHAN Xi-Lin, LONG An-Hou, LI Jun-Gang   

  1. Petroleum Engineering Department, Daqing Petroleum Institute, Anda, 151400
  • Online:1999-05-24 Published:1999-05-24

摘要: 针对模拟采出液和三元复合驱矿场采出液,研究了破乳剂对复合体系界面张力和膜强度的影响.破乳剂浓度增加,二元复合体系界面张力降低,而三元复合体系界面张力升高.破乳剂分子部分顶替乳化剂分子并显著降低了界面膜强度.

关键词: 破乳剂, 低界面张力, 界面活性, 吸附, 膜强度

Abstract: The effects of demulsifiers on interfacial tensions and membrane strength were studied for the model and effluence systems from the three compound combination flooding field. The interfacial tensions owned by the two compound combination system decreased but those owned by the three compound combination system increased with increasing the demulsifier concentrations. Membrane strength decreased with the increase of demulsifier. The demulsification mechanism of demulsifier is suggested that demulsifier partially replaces the stabilizers and greatly decreases the intensity of interfacial film.

Key words: Demulsifier, Low interface tension, Interfacial activity, Adsorption, Membrane strength

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