One of important tasks in a development of gas-condensate fields is to minimize
hydrocarbons loss arising from the gas condensation in pores of the gas-bearing layer.
The search for the optimal gas production regime is carried out both on the basis
of laboratory experiments and on the base of computer simulation. In this regard,
the relevant is the verification of the constructed mathematical models by means of
comparison of numerical results with experimental data obtained on the laboratory
models of a hydrocarbon reservoirs. Within the classical approach on the basis of the
Darcy law and the law continuity for flows, the model is formulated that describes
the passing a multicomponent gas-condensate mixture through a porous medium in
the depletion mode. The numerical solution of the corresponding system of nonlinear
partial differential equations is implemented on the basis of the combined use of the
C++ programming language and the Maple software. Shown that the approach used
provides an agreement of results of numerical simulations with experimental data on
the dynamics of hydrocarbon recoverability depending on the pressure obtained at
VNIIGAZ, Ukhta.