The asymptotic solution of the equation describing the polytropic gas filtration in a nonhomogeneous porous medium. 2

The process of gas filtration in a strong nonhomogeneous porous media was studied. The filtration equation with oscillated coefficients was used as a mathematical model. The asymptotic solution of the boundary problem describing the gas filtration in a strong nonhomogeneous porous medium was constructed and efficient coefficients of permeability were calculated. The example was considered.