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Hydraulic effects of fracture in brittle porous materials

This paper presents a multi‐level model for the description of hydraulic effects of fracture within the context of Enhanced Geothermal Systems. The standard Biot's poroelastic formulation is used to model the physical processes in a geomechanical reservoir in terms of the material deformation and the fluid pressure. Crack propagation is modeled using the phase field method. The influence of a propagating fracture on permeability is taken into account by using a micromechanical homogenization technique. (© 2014 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)