凝析气井垂直管流计算新方法

A New Method of Vertical Flow Calculating in Condensate Gas Well

指出目前常用的凝析气井垂直管流计算方法存在未考虑传热、动能损失、温度分布计算等缺点；考虑上述因素及其它条件，根据气体稳定流动能量方程和传热原理，推出了凝析气井井筒微分压力迭代垂直管流计算新方法；编制了计算机程序；并给出了实例计算、误差分析及各种因素的敏感性分析。结果表明，该方法精度高，适用范围广，简单实用。

The authors point out that current methods of vertical flow calculating didn' t consider factors such as thermal conduction, kinetic energy loss and temperature distribution et al. This resulted in larger calculating error. In cosideration of the upper factors, based on gas steady flow energy equation and heat transfer theory, a new method is induced by differential iteration, the paper provides computer prograrn, makes example calculating error analysis and sensitivity analysis to various factors. The results indicate this method is accuray,simple and practical.