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<p>Calculation schemes for modeling processes with nonequilibrium phase transformations in the course of development of hydrocarbon fields are proposed and characteristic indicators of the development of real gas condensate fields are estimated on their basis. It is established that nonequilibrium effects lead to significant deviations of the values of actual system parameters (liquid phase fraction and condensate content in the formation gas) from their values estimated for equilibrium states, as a result of which the condensate recovery factor determined with regard to the nonequilibrium state of the system differs significantly from its estimate for the equilibrium state. A method for calculating the interphase flow intensity is introduced, which allows adapting a nonequilibrium thermodynamic model to actual data with regard to the degree of phase behavior deviation from equilibrium and to the dependence of the rate of relaxation of phase compositions on pressure changes.</p>

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Modeling the Process of Development of Gas Condensate Deposits with Regard to Thermodynamic Nonequilibrium

  • 期刊论文

  • 发表日期：

    2025年3月1日

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  • Kh. A. Feizullaev,
  • M. S. Khalilov,
  • B. Kh. Feizullaev,
  • A. A. Damirov

摘要

Calculation schemes for modeling processes with nonequilibrium phase transformations in the course of development of hydrocarbon fields are proposed and characteristic indicators of the development of real gas condensate fields are estimated on their basis. It is established that nonequilibrium effects lead to significant deviations of the values of actual system parameters (liquid phase fraction and condensate content in the formation gas) from their values estimated for equilibrium states, as a result of which the condensate recovery factor determined with regard to the nonequilibrium state of the system differs significantly from its estimate for the equilibrium state. A method for calculating the interphase flow intensity is introduced, which allows adapting a nonequilibrium thermodynamic model to actual data with regard to the degree of phase behavior deviation from equilibrium and to the dependence of the rate of relaxation of phase compositions on pressure changes.