Numerical study on two-phase flow through fractured porous media

查看全文 作　　者：HUANG ZhaoQin YAO Jun WANG YueYing TAO [1]Ke

机构地区：[1]School of Petroleum Engineering, China University of Petroleum (Huadong), Qingdao 266555, China

出　　处：《Science China(Technological Sciences)》索引2011年第54卷第9期,共9页

基　　金：supported by the National Basic Research Program of China('973'Program)(Grant No.2011CB20100);the Important National Science and Technology Project of China(Grant No.2011ZX05014- 005-003HZ);the Specialized Research Fund for the Doctoral Program of Higher Education of China(Grant No.20090133110006);the Fundamental Research Funds for the Central Universities(Grant No. 09CX04005A) 摘　　要：Based on the flux equivalent principle of a single fracture,the discrete fracture concept was developed,in which the macroscopic fractures are explicitly described as(n-1)dimensional geometry element.On the fundamental of this simplification,the discrete-fractured model was developed which is suitable for all types of fractured porous media.The principle of discrete-fractured model was introduced in detail,and the general mathematical model was expressed subsequently.The fully coupling discrete-fractured mathematical model was implemented using Galerkin finite element method.The validity and accuracy of the model were shown through the Buckley-Leverett problem in a single fracture.Then the discrete-fractured model was applied to the two different type fractured porous media.The effect of fractures on the water flooding in fractured reservoirs was investigated.The numerical results showed that the fractures made the porous media more heterogeneous and anisotropic,and that the orientation,size,type of fracture and the connectivity of fractures network have important impacts on the two-phase flow. 关键词：多孔介质数值研究 GALERKIN有限元方法裂隙离散数学模型两相流裂缝模型裂缝性油藏

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Numerical study on two-phase flow through fractured porous media

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