Research on Performance and Application of Alkanolamide Surfactant in Technique of Pressure Decreasing and Injection Increasing

LI Xiao-dong; LIU Hui; XU Fang-jun

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Research on Performance and Application of Alkanolamide Surfactant in Technique of Pressure Decreasing and Injection Increasing

更新时间：2026-07-10

- Research on Performance and Application of Alkanolamide Surfactant in Technique of Pressure Decreasing and Injection Increasing
- Vol. 14, Issue 6, Pages: 120-123(2009)
- 作者机构：
  
  1. 中国地质大学地球科学与资源学院
  2. 哈尔滨理工大学化学与环境工程学院
  3. 大庆油田有限公司萨南实业公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TE357.6
- Published：2009
- 稿件说明：
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LI Xiao-dong, LIU Hui, XU Fang-jun. Research on Performance and Application of Alkanolamide Surfactant in Technique of Pressure Decreasing and Injection Increasing[J]. 2009, 14(6): 120-123.
DOI：

LI Xiao-dong, LIU Hui, XU Fang-jun. Research on Performance and Application of Alkanolamide Surfactant in Technique of Pressure Decreasing and Injection Increasing[J]. 2009, 14(6): 120-123. DOI：

摘要

针对我国油田部分注水井注入压力高、注水驱替效率低的情况

进行了烷醇酰胺表面活性剂在降压增注技术中的性能与应用研究.室内完成了烷醇酰胺表面活性剂体系界面张力、界面张力稳定性能研究以及岩心驱替评价试验研究.实验结果表明

烷醇酰胺表面活性剂油水界面张力达到10-2mN/m数量级

且具有较好的界面张力稳定性

同时也验证了烷醇酰胺表面活性剂具有较强的抗盐能力和较大的吸附量.岩心驱替评价实验表明

烷醇酰胺表面活性剂对岩心的降压效果较好

降低了注入聚合物溶液压力20%以上.同时

为进一步验证表面活性剂降压增注技术的可行性

对大庆油田采油二厂的7口井进行了表面活性剂现场注入实验

取得了显著的降压增注效果

单井最长增注量达3 600 m3

单井有效期最长达130天.

Abstract

Aiming at the problem of high water injection pressure and low displacement efficient in low-permeability reservoir of China

performance and applied research on decreasing injection pressure by Alkanoamide surfactant is carried out.Laboratory research on interfacial tension of Alkanoamide surfactant system and the stability have been in process.We have also proceeded core simulation experiments by surfactant.Results indicate that the interfacial tension between oil and water is below 10-2 mN/m and the stabi...

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