Anisotropic continuum framework of coupled gas flow – adsorption – deformation in sedimentary rocks
Qi Zhang,
Zhen‐Yu Yin,
Xia Yan
Abstract:Solid deformation is always a crucial factor of gas transport in sedimentary rocks. While previous studies always adopt the assumption of isotropic poroelastic deformation, anisotropic poroelastoplastic deformation is rarely considered, despite anisotropy being a ubiquitous property of natural sedimentary rocks. In this work, an anisotropic poromechanical model is established to analyze the matrix porosity and apparent permeability evolutions during the process of gas migration. Using a thermodynamic formulati… Show more
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