Characteristics of Hydraulic Fracture in Heterogeneous Rock with Distributed Hard Inclusions

Hydraulic fracture is an important technic for oil/gas production. A smeared cracked method is adopt for simulating hydraulic fracturing propagation within the framework of a fully coupled, pore pressure-solid phase interaction formulation. The stress-strain behavior of the solid phase is modeled as a porous media by using elasto-plastic, Drucker-Prager description. The inherent assumption of the fracture model is that the permeability can be …