NUMERICAL SIMULATION OF THE PROBLEM OF GAS FILTRATION IN A PIECEWISE INHOMOGENEOUS POROUS MEDIUM

Abstract

It i s known that one of the main indicators of the development of gas fields are changes in reservoi r and bottom hole pressure. These indicators can be determined using mathematical modeling of unsteady gas filtration in a porous medium under appropriate boundary conditions that adequately describe the process as a whole. Due to the complexity and nonline arity of the two dimensional differential equations of gas filtration, it is currently not possible to obtain the necessary analytical solutions. Therefore, to calculate the main indicators of the development of gas fields, various numerical methods, compu tational algorithms and their software tools for conducting SE on a computer were proposed.