确定气井产能方程的简易方法

基于气体渗流力学理论和二项武产能方程通武，推导出二项式系数A、B是地层系数“Kh”的函数表达式，从而根据测得的已知参数、气藏工程计算的参数（使用试井解释参数更好）、经验类比取值的参数等，建立了以“Kh”为未知量的二项式形式的方程，求解该武中的未知量“Kh”，得到气井的稳定产能方程，进而求得无阻流量。计算实例表明，该方法实用、简便，结果可靠。

A Simple Method for Determination of Gas Well Productivity

Based on gas percolation mechanics theory and general binomial productivity equation,the expression of binomial coefficient A and B as function of Kh is deduced,then the observed parameters,the parameters given by gas reservoir engineering computation(especially by well test interpretation) and data from empirical analogy method are used to establish the binomial equation for solving Kh as an unknown function for the purpose of deducing the stable productivity equation for gas well,obtaining the open-flow capacity.The case study shows that this method is practical,simple and reliable for application.