Calculation of the Phase Equilibrium of a Hydrocarbon Mixture with Regard for the Capillary Pressure Jump in It by the Example of the Astrakhan Field

• Published in: Journal of engineering physics and thermophysics Vol. 96; no. 6; pp. 1516 - 1526
• Main Authors: Raikovskii, M. I., Dem’yanov, A. Yu, Dinariev, O. Yu, Rudenko, D. V.
• Format: Journal Article
• Language: English
• Published: New York Springer US 01.11.2023; Springer; Springer Nature B.V
• Subjects: Analysis; Capillary pressure; Classical Mechanics; Complex Systems; Engineering; Engineering Thermodynamics; Equations of state; Heat and Mass Transfer; Industrial Chemistry/Chemical Engineering; Mathematical analysis; Mixtures; Numerical analysis; Phase diagrams; Phase equilibria; Porous media; Pressure jump; Thermodynamics; Vapor phases; saturation; gas–condensate mixture; phase equilibrium; free energy; capillary pressure jump

The influence of a capillary pressure jump in a porous medium on the equilibrium between its liquid and gas phases, defined by the Peng–Robinson equation of state, was investigated. A numerical analysis of the phase diagrams of a gas–condensate mixture, constructed in gas-pressure and liquid-pressur...