新疆石油地质

新疆石油地质 ›› 2011, Vol. 32 ›› Issue (4): 378-381.

• 油藏工程 • 上一篇    下一篇

基于毛细管力作用的聚合物驱流线数学模型

于金彪1,2, 吴明录3, 魏绍蕾3, 姚军3, 谷建伟3, 张宁3   

  1. 1.中国石油大学（北京） 地球科学学院,北京 102249;
    2.中国石化胜利油田有限责任公司开发处,山东东营 257001;
    3.中国石油大学石油工程学院,山东东营 257061
  • 收稿日期:2010-12-10 出版日期:2011-08-01 发布日期:2020-08-19
  • 作者简介:于金彪（1970-）,男,河北故城人,高级工程师,在读博士研究生,石油地质,（Tel）13854609586（E-mail）yjb0920@126.com.
  • 基金资助:
    国家科技重大专项(2008ZX05011-004)

Capillary Pressure-Based Polymer Flooding Streamline Mathematic Model

YU Jin-biao1,2, WU Ming-lu3, WEI Shao-lei3, YAO Jun3, GU Jian-wei3, ZHANG Ning3   

  1. 1. College of Earth Sciences, China University of Petroleum, Beijing 102249, China;
    2. Development Department, Shengli Oilfield Company Ltd., Sinopec, Dongying, Shandong 257061, China;
    3. Faculty of Petroleum Engineering, China University of Petroleum, Dongying, Shandong 257061, China
  • Received:2010-12-10 Online:2011-08-01 Published:2020-08-19

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摘要： 建立了一种较实用的聚合物驱模型,较全面地考虑了聚合物驱替过程中各种复杂的物理化学现象及毛细管力的作用。引入“传播时间”的概念,将求解饱和度和浓度的三维问题转化为一维问题。采用算子分裂算法将沿流线的饱和度方程和浓度方程分解为典型的双曲方程和椭圆方程,从而实现对聚合物驱流线数学模型的快速、准确求解。研究表明,毛细管力对水驱油藏饱和度影响不大（饱和度最大绝对误差为2×10-4）,可以忽略,但对聚合物驱油藏饱和度影响较大（饱和度最大绝对误差为0.075）,是聚合物驱应该考虑的重要因素。

关键词: 聚合物驱, 毛细管力, 流线法, 算子分裂

Abstract: This paper presents a practical model for polymer flooding in which the complex chemical-physical phenomena and the capillary pressure effect are considered. And introducing transit time concept, the 3D saturation equation is decomposed into a set of 1D equations (hyperbolic equation and ellipse equation) by employing the operator splitting technique. With the 3D streamline simulator, the polymer flooding model can be calculated fast and accurately. The study shows that the little effect of capillary pressure on water flooding reservoir’ saturation (the maximum absolute error of the saturation is less than 0.02%) can be ignored, while the effect of it on polymer flooding reservoir’s saturation is larger (the maximum absolute error of the saturation is 7.5%), which should be an important factor for polymer flooding.

Key words: polymer flooding, capillary pressure, streamline method, operator splitting

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