Influence of zone heterogeneity of the collector on the distribution of pressure in the layer when gas filtration

The article, based on the finite-difference model of the pressure field in a zone-heterogeneous formation, considers the problem of gas filtration in formations with a contaminated bottom-hole zone. By comparing with the simulation results in a hydrodynamic simulator, the reliability of the developed model is shown. The dependence of the pressure in the reservoir and the flow rate of the well on the size of the contaminated zone is shown.