计算物理 ›› 2014, Vol. 31 ›› Issue (4): 455-464.

• 研究论文 • 上一篇    下一篇

裂缝性应力敏感油藏流固耦合的数值模拟

吴军来1,2, 刘月田2, 罗婕3   

  1. 1. 中国石化石油勘探开发研究院, 北京 100083;
    2. 中国石油大学(北京)石油工程学院, 北京 102249;
    3. 中国石油大港油田滩海开发公司, 天津 300280
  • 收稿日期:2013-08-24 修回日期:2013-11-28 出版日期:2014-07-25 发布日期:2014-07-25
  • 作者简介:吴军来(1983-),男,博士,工程师,主要从事油藏渗流力学、油气田开发及数值模拟研究,E-mail:wujunlai2004@163.com
  • 基金资助:
    国家重大专项(2011ZX05009)资助项目

Numerical Simulation of Fluid-Solid Coupling in Fractured Stress-sensitive Reservoirs

WU Junlai1,2, LIU Yuetian2, LUO Jie3   

  1. 1. Petroleum Exploration and Production Research Institute of SINOPEC, Beijing 100083, China;
    2. Department of Petroleum Engineering, China University of Petroleum (Beijing), Beijing 102249, China;
    3. Shallowwater Development Company of Dagang Oilfield Ltd, PetroChina, Tianjin 300280, China
  • Received:2013-08-24 Revised:2013-11-28 Online:2014-07-25 Published:2014-07-25

摘要: 以裂缝各向异性全张量渗透率动态耦合渗流模型为基础,建立三维三相裂缝各向异性特低渗透油藏流固耦合数学模型,并运用模块化显示耦合迭代求解建立流固耦合渗流数值模拟方法,编制耦合求解程序.研究表明:对于裂缝性油藏,随着油藏开采过程中压力的变化,岩石变形和储层介质的各向异性应变特性使开发过程中多组裂缝的变形程度不同,引起裂缝渗透率的非线性变化,进而使油藏裂缝渗透率张量主值发生旋转,改变液流方向、影响油藏开发效果.

关键词: 相似材料, 物理模拟, 各向异性, 裂缝变形, 全张量渗透率

Abstract: With dynamic coupling model of fractured anisotropic full-tensor permeability, a complete three-dimensional three-phase fluid-solid coupling model for anisotropic ultra-low permeability reservoir is established. Using modular explicit coupling iteration, we establish a fluid & solid coupling seepage numerical simulation method considering fracture deformation and corresponding coupling program. It shows that for fractured reservoir, with change of reservoir pressure in process of mining, rock deformation and anisotropy of reservoir medium strain can make various deformation degree in multiple sets of cracks, cause nonlinear change of fracture permeability, which makes principal value of reservoir fracture permeability tensor rotating, changing flow direction, affecting reservoir development effect.

Key words: similar material, physical simulation, anisotropy, fracture deformation, full tensor permeability

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