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根据天然气和反凝析液在地层中渗流特征，结合凝析油气体系相态理论及闪蒸计算方法，考虑流体相态和组分变化，引入稳态理论计算的两相拟压力函数，建立凝析气井流入动态预测新方法，通过与系统试井的结果对比，认为该方法适用于凝析气井的流入动态预测。利用垂直管流公式，结合流体相平衡热力学闪蒸计算，运用状态方程模拟，给出凝析气井流出动态预测新方法，通过三口井１２组实测数据的实例计算，其计算精度较高且比不考虑相态变化的方法更为精确，说明适用于凝析气井流出动态预测。将凝析气井流入动态和流出动态预测方法相结合，给出更为符合实际的凝析气井生产系统分析方法，能更好地指导凝析气井的生产。
According to the seepage characteristics of natural gas and counter-condensate in the formation, combined with the phase theory of condensate oil-gas system and the flash calculation method, the phase and composition of the fluid are considered, and the two-phase pseudo-pressure function calculated by the steady-state theory is introduced to establish the condensate The new method of dynamic prediction of gas well inflow is compared with that of the system well test, and the method is suitable for the dynamic prediction of inflow of condensate gas well. Based on the vertical flow equation and the flashover calculation of fluid phase equilibrium thermodynamics, a new method of dynamic prediction of condensate gas well outflow is given by the equation of state equation. The calculated results of 12 groups of three wells show that the calculation accuracy is high and not more than The method of considering the phase change is more accurate, which shows that it is suitable for the dynamic prediction of outflow of condensate gas wells. Combining the dynamic inflow of condensate gas well with the dynamic prediction of outflow, a more realistic analytical method of condensate gas well production system is given, which can better guide the production of condensate gas well.