This book discusses the inhomogeneous model and its application in shale gas reservoirs，including： permeability prop-erties of single-fractured porous media， flow mechanisms in fractured porous medium， flow mechanisms in vuggy porous media， fluid flow in naturally fractured-vuggy carbonate reservoirs， shale gas transport and storage mechanism on micro-scopic scale， flow regimes of heterogeneous shale gas reservoirs， flowback regimes of fracturing fluid， and analysis of poten-tial contamination risk in a shallow aquifer from hydraulically-fractured shale.This book can be used as a reference for graduate students， senior college students， university teachers and resear-chers in the fields of computational fluid mechanics，science and engineering numerical analysis.
1 Introduction 1．1 Research background and significance 1．2 Research status at home and abroad 1．3 The main contents of this book 2 Permeability Properties of Single-fractured Porous Media 2．1 Single-fractured porous media model 2．2 Study on the permeability properties of different coupling model 2．3 Equivalent method of fractured medium 2．4 Chapter summary 3 Flow Mechanisms in Fractured Porous Medium 3．1 Seepage simulation of fractured medium 3．2 Fluid-solid coupling simulation of fractured medium 3．3 Heat-fluid-solid coupling simulation of fractured medium 3．4 Chapter summary 4 Flow Mechanisms in Vuggy Porous Media 4．1 Coupling simulation of Darcy-Stokes 4．2 Research on mechanism of multi-field coupling for vuggy porous media 4．3 Heat-fluid-solid coupling simulation of vuggy porous media 4．4 Chapter summary 5 Fluid Flow in Naturally Fractured-vuggy Carbonate Reservoirs 5．1 Mathematical model 5．2 Model verification 5．3 Model application 5．4 Conclusions 6 Shale Gas Transport and Storage Mechanism on Microscopic Scale 6．1 Flow regime determined by Knudsen number 6．2 Apparent permeability 6．3 Adsorption and desorption 6．4 Chapter summary 7 Flow Regimes of Heterogeneous Shale Gas Reservoirs 7．1 Fluid flow model 7．2 Numerical results 7．3 Discussion 7．4 Conclusions 8 Research on Flowback of Fracturing Fluid 8．1 Two-phase flow in hydraulic fractures 8．2 Two-phase flow in equivalent region 8．3 Gas phase permeability 8．4 Chapter summary 9 Analysis of Potential Contamination Risk in a Shallow Aquifer from Hydraulically-Fractured Shale 9．1 Mathematical model 9．2 Model verification 9．3 Model application 9．4 Conclusions Reference
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