新疆石油地质

新疆石油地质 ›› 2006, Vol. 27 ›› Issue (6): 733-735.

• 油藏工程 • 上一篇    下一篇

二元无碱驱油体系的室内研究与评价

牛瑞霞1, 程杰成2, 龙彪1, 李柏林1, 张长宝1   

  1. 1.大庆石油学院, 黑龙江大庆 163318;
    2.中国石油大庆油田有限责任公司, 黑龙江大庆 163453
  • 收稿日期:2006-02-27 修回日期:2006-04-20 出版日期:2006-12-01 发布日期:2020-10-21
  • 作者简介:牛瑞霞(1977-), 女, 河北保定人, 助教, 硕士, 油田应用化学,(Tel) 0459-6503877(E-mail) bdant@sina.com.

Laboratory Investigation and Appraisal on Non-Alkali Binary Chemical Flooding System

NIU Rui-xia1, CHENG Jie-cheng2, LONG Biao1, LI Bo-lin1, ZHANG Chang-bao1   

  1. 1. Daqing Petroleum Institute, Daqing, Heilongjiang 163318, China;
    2. Daqing Oilfield Company Ltd., PetroChina, Daqing, Heilongjiang 163453, China
  • Received:2006-02-27 Revised:2006-04-20 Online:2006-12-01 Published:2020-10-21

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摘要： 随着三元复合驱技术研究的不断深入, 三元复合驱体系中碱对石油开采过程及地层造成的危害日益凸现。以自制石油磺酸盐NPS-2为表面活性剂, 通过考察不同质量分数的NaCl和石油磺酸盐对大庆采油四厂油水界面张力的影响, 确定了二元无碱驱油体系配方, 并对该体系的应用广泛性和驱油效果进行了评价。结果表明, 从自制石油磺酸盐为表面活性剂, 二元无碱驱油体系合适配方为CNaCl=0.6%~1.2%, CNPS-2=0.1%~0.3%, CHPAM=0.12%. 该二元复合驱配方体系可使油水界面张力降至超低, 全部达到10-3mN/m 数量级, 最低可达10-4mN/m 数量级, 能够避免由碱引起的对地层和采油设备的损害, 具有很高的现场应用价值。

关键词: 三次采油, 石油磺酸盐, 聚合物, 碱, 体系

Abstract: The harm of alkali becomes more and more obvious with the progress of the research on the ASP flooding technology for EOR. This paper presents the home-made petroleum sulfonate NPS-2 as a surfactant, by which investigates the effects of NaCl and petroleum sulfonates of different concentrations on the oil-water interfacial tension in area of No.4 oil production plant of Daqing Oilfield Company Ltd., determines the formulation for non-alkali binary flood system and evaluates its applicable universality and displacement effectiveness. The results show that this binary formulation system (CNaCl=0.6%~1.2%, CNPS-2=0.1%~0.3%, CHPAM=0.12%) may allow the oilwater interfacial tension to be greatly decreased by order of 10-3mN/m to 10-4mN/m, hence avoiding the damages of alkali on oil-bearing strata and oil production equipments.

Key words: tertiary recovery, EOR, petroleum sulfonate, polymer, alkali, system

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