中国石油大学学报（自然科学版）2011，Vol.35Issue(2)：91-95,5.DOI:10.3969/j.issn.1673-5005.2011.02.016
基于Darcy-Stokes耦合模型的缝洞型介质等效渗透率分析
Estimating equivalent permeability of fractured-vuggy media based on coupled Darcy-Stokes model
摘要
Abstract
A coupled Darcy-Stokes model was developed to estimate equivalent permeability ( EP) of fractured-vuggy media ( FVM ) according to the structure property of FVM and the fluid flow characteristics in different-scale voids. The generalized cubic law considering bedrsock permeability and equivalent permeability tensor of single-fractured porous media were derived. The pretreatment technique of fractured porous media ( FPM) was developed. Thus the vug-fracture-matrix coupled flow problem was converted into the vug-matrix problem. The equivalent permeability and permeability characteristics of differentFVMs were analyzed. The results show that the EP of FVM was affected by the existence of fractures and vugs in various de- grees. The EP of porous media with single circle vug is linear with the matrix permeability. The pretreatment technique of FPM can enhance the computation efficiency.关键词
缝洞型介质/Darcy-Stokes耦合模型/连续介质/等效渗透率/流动模拟Key words
fractured-vuggy media/ coupled Darcy-Stokes model/ continuous media/ equivalent permeability/ flow simulation分类
能源科技引用本文复制引用
李亚军,姚军,黄朝琴,刘永辉..基于Darcy-Stokes耦合模型的缝洞型介质等效渗透率分析[J].中国石油大学学报（自然科学版）,2011,35(2):91-95,5.基金项目
国家科技重大专项(2008ZX05014-005-03) （2008ZX05014-005-03）
高等学校博士点基金项目(20090133110006) （20090133110006）
中国石油大学(华东)研究生创新基金项目(Z10-03) （华东）
