oa Two-Phase Flow Through Fractured Porous Media

Two-phase flow in fractured porous media is investigated by means of a direct and complete numerical solution of the flow equations in a three-dimensional porous medium straddled by a fracture network. The numerical model applies to arbitrary fracture network geometry, and to arbitrary distributions of permeabilities in the porous matrix and in the fractures. Calculations relative to two sets of networks are presented. An approximate model can be proposed to derive the macroscopic relative permeabilities. The macroscopic capillary pressure is not significantly different from the one of the porous medium only.