石油学报 ›› 2008, Vol. 29 ›› Issue (3): 423-426.DOI: 10.7623/syxb200803021

• 油田开发 • 上一篇    下一篇

用于延缓交联的多重乳液体系的热稳定性及运移行为

魏发林1, 刘玉章1, 岳湘安2, 侯吉瑞2, 唐孝芬1, 李宜坤1, 熊春明1, 刘戈辉1   

  1. 1. 中国石油勘探开发研究院 北京 100083;
    2. 中国石油大学提高采收率研究中心 北京 102249
  • 收稿日期:2007-07-30 修回日期:2007-09-30 出版日期:2008-05-25 发布日期:2010-05-21
  • 作者简介:魏发林,男,1972年7月生,1994年毕业于江汉石油学院,2006年获中国石油大学(北京)油气田开发工程专业博士学位,现为中国石油勘探开发研究院博士后,主要从事油气田控水、堵水技术研究.E-mail:weifalin@petrochina.com.cn
  • 基金资助:
    国家"十五"科技攻关项目(2003BA613-07-05)部分成果.

Thermal stability and transport property of multiple emulsions used as delayed crosslinker

WEI Falin1, LIU Yuzhang1, YUE Xiang'an2, HOU Jirui2, TANG Xiaofen1, LI Yikun1, XIONG Chunming1, LIU Gehui1   

  1. 1. PetroChina Exploration and Development Research Institute, Beijing 100083, China;
    2. Enhanced Oil Recovery Center, China University of Petroleum, Beijing 102249, China
  • Received:2007-07-30 Revised:2007-09-30 Online:2008-05-25 Published:2010-05-21

摘要: 有机延缓交联及油包水乳液延缓交联方法在实现凝胶深部调剖、改善开发效果方面存在一些不足,为此制备了多重乳液延缓交联体系,研究了其热稳定性及运移行为.这种交联体系是在柴油为油相、Cr(AC)3交联剂为内水相、聚氧乙烯失水山梨醇单月桂酸酯(T20)为水包油乳化剂、聚异丁烯基丁二酰亚胺(T161)为油包水乳化剂的条件下制成的多重乳液延缓交联体系,具有更高的热稳定性.此外,传统Cr(AC)3经多重乳液包覆处理后,在多孔介质中的运移能力提高2.12倍.可作为较高油藏温度条件下高含水率、高采出程度注水开发油田实施深部调剖措施的有效手段.

关键词: 注水油田, 多重乳液延缓交联体系, 聚合物凝胶, 深部调剖, 热稳定性, 运移行为

Abstract: There are some shortcomings in the current delayed crosslinking methods.A novel delayed release technology using multiple emulsion crosslinking system was developed.The thermal stability and transport property of the multiple emulsion were analyzed.This crosslinking system was prepared by taking T20 as hydrophilic surfactant and T161 as the lipophilic surfactant respectively.The experimental data indicate that the multiple emulsion can meet well with the higher temperature in reservoir and propagate in the porous media with the greater velocity by 2.12 times more than the crosslinker used alone,which leads to more advisable crosslinking ability.The multiple emulsion crosslinking system was proved to be available for improving the efficiency of deep profile modification in the water-flooding oilfields with high water cut and high recovery rate.

Key words: water-flooding oilfield, multiple emulsion crosslinking system, polymer gel, deep profile modification, thermal stability, transport property

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