Influence of permeability anisotropy on rock damage and heat transfer in geothermal reservoir

Enhanced geothermal system technology is in the focus of geothermal energy research due to its large economic growth potential. This study illustrates a pseudo-3D doublet model of EGS using coupled thermo-hydro-mechanical-damage modeling processes in the framework of TOUGHREACT-FLAC3D. Three cases were simulated to evaluate the effect of anisotropic permeability (η=5, 1, 0.2) on conducting damage, inducing permeability evolution, reducing...