石油学报 ›› 2003, Vol. 24 ›› Issue (5): 71-73.DOI: 10.7623/syxb200305015

• 油田开发 • 上一篇    下一篇

三元复合驱中乳化作用对提高采收率的影响

李世军1, 杨振宇2, 宋考平1, 康万利1   

  1. 1. 大庆石油学院, 黑龙江大庆, 163318;
    2. 大庆油田有限责任公司, 黑龙江大庆, 163453
  • 收稿日期:2002-11-04 修回日期:2003-02-15 出版日期:2003-09-25 发布日期:2010-05-21
  • 作者简介:李世军,男,1968年4月生,1999年毕业于哈尔滨工程大学获硕士学位,现为大庆石油学院在读博士,主要从事油藏工程方面的研究.
  • 基金资助:
    国家自然科学基金资助项目(No.10172028).

Effect of crude oil emulsion on enhanced oil recovery in alkaline surfactant polymer flooding

LI Shi-jun1, YANG Zhen-yu2, SONG Kao-ping1, KANG Wan-li1   

  1. 1. Daqing Petroleum Institute, Daqing 163318, China;
    2. Daqing Oilfield Corporation Ltd., Daqing 163453, China
  • Received:2002-11-04 Revised:2003-02-15 Online:2003-09-25 Published:2010-05-21

摘要: 评价了不同机械搅拌力、不同含水率条件下,碱、表面活性剂、聚合物溶液与原油间的乳化能力,研究了这种三元复合驱过程中形成的乳化液类型及其稳定性,给出了油水比、化学剂类型、浓度、外力及其综合作用对产生乳化的影响程度.分析了大庆油田三元复合驱矿场试验中采出液产生乳化的原因.室内物理模拟实验表明,三元复合驱过程中产生的原油乳化作用是提高驱油效率、扩大波及体积的关键因素.

关键词: 碱, 表面活性剂, 聚合物, 驱油体系, 乳化作用, 乳状液, 提高采收率

Abstract: The stability and emulsification ability of the emulsion formed by unitary,duality or ternary solutions containing alkaline,surfactants and polymer with crude oil were investigated under the conditions of the different ratios of water to oil and various stirring forces.It is disclosed that the main factors affecting the emulsification in the alkaline-surfactant-polymer (ASP) flooding are water to oil ratio,types and concentrations of chemicals,applied force and their synergetic process.The reasons for emulsification of produced fluid in ASP flooding of Daqing Oilfield were also explained.Oil emulsification and emulsion profile control are the key factors in the ASP flooding mechanisms for increasing oil displacement efficiency and sweep efficiency.The laboratory physical simulation shows that oil emulsification of ASP flooding can improve the interlayer and in situ interference and favor further improvement of oil recovery efficiency.

Key words: alkaline, surfactant, polymer, flooding system, emulsification, emulsion, enhanced oil recovery

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