Effect of the fracture aperture distribution on the heat extraction performance from the fractured geothermal systems

Saeed Mahmoodpour , Mrityunjay Singh , Kristian Bär & Ingo Sass
Fractures are main flow paths for heat extraction from fractured geothermal systems. The process of injecting cold water to extract hot water from a fractured reservoir results in thermal and poroelastic stresses in the rock matrix. Therefore, these thermo-hydro-mechanical (THM) mechanisms govern the efficiency of an enhanced geothermal system (EGS) operation. Fractures’ aperture is a controlling factor for the heat extraction efficiency. Due to the lack of field and experimental works, a constant aperture is...
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