Two-phase filtering in a fractured porous medium

There are two main problems in describing two-phase filtration flows: the construction of physical processes model and the complexity of accounting for the processes of gas- and liquid-phase filtration. The article presents a universal computational technology that implements an arithmetical model of two-phase filtering of the processes of gas and fluid filtration in a fractured porous medium with consideration of the horizontal seam deformation. The Van Genuchten model for fluid and methane movement in coal seams is used as a basic model. A model of linear elastic deformation is constructed for accounting the influence of deformations. The universality of the obtained computing technology allows us to generalize the arithmetical model further. This technology takes into account the effect of water saturation on the elastic parameters, as well as the appearance of new fractures in the porous framework. The used differential scheme allows solving problems in an extremely wide range of changes in water saturation.