Mathematical model analysis of 2-phase equilibrium mixture and its implementation in the information system

This paper is devoted to mathematical modeling of the vapor-liquid equilibrium analysis of multicomponent hydrocarbon mixtures. The aim is to develop a mathematical model describing the phase of the systems of natural hydrocarbons. Implemented data-processing system to calculate, including the determination of the composition and the quantitative ratio of the vapor and liquid phases at a given pressure, temperature and composition of the total mixture. The database includes a plurality of interconnected factors thermodynamic equilibrium, serial and parallel algorithms for calculating vapor-liquid equilibria in multicomponent hydrocarbon systems containing water. The analysis of existing experimental studies on the modeling of the thermodynamic properties of oil and natural gas in a porous medium. Carried out calculations to experimental data from the literature.