Phenomenological equations (with coeecients to be determined by speciied experiments) for the poroelastic behavior of a dual porosity medium are formulated and the coeecients in these linear equations are identiied. The generalization from the single porosity case increases the number of independent coeecients for volume deformation from three to six for an isotropic applied stress. The physica...

Within this work, we upscale the equations that describe pore-scale behaviour of nonlinear porous elastic composites, using asymptotic homogenization technique in order to derive macroscale effective governing equations. A hyperelastic composite can be thought as being comprised a matrix interacting with number subphases and percolated by fluid flowing pores (which is chosen Newtonian incompres...

A three-dimensional poroelastic model is developed to investigate the poroelastic effect of fluid injection into a geothermal reservoir. In the model, the fluid flow in the fracture is assumed to be lubrication flow and modeled by the finite element method. The threedimensional pore fluid diffusion in the reservoir and the induced stresses are modeled by the boundary integral equation method. T...