ABSTRACT: A finite element model has been developed to simulate two-phase (i.e., oil and gas) flow and solid deformation in naturally fractured porous media. The numerical model is based on the dual-porosity concept and involves rigorous conservations of momentum and mass in both matrix and fractures. The deformations and flow in both media are fully coupled and the intensity of interaction between fractures and matrix is controlled by the respective mass exchange rates. The model is verified using the solutions of an inclined borehole in a porous media saturated with a single fluid, subjected to a non-hydrostatic state of stress. The sensitivity analysis is also carried out to identify influential parameters which control the magnitude and distribution of the coupled pore pressure and rock deformations.

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