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射孔是影响气井产能的关键因素，选择合理的射孔参数极其重要。气井由于其 渗流特性与油井不同，因此，射孔参数的选择也与油井不同。根据气井的渗流规律和气层被钻井泥浆污染的特性，分析了射孔参数对气井产能的影响，同时与油井进行了对比，并进行了实例计算。提出近井带孔深对产能的影响较油井强烈；超过污染带后孔径又成为第一影响参数，这一特点与油井完全不同。
Perforation is the key factor that affects gas well productivity. It is extremely important to select reasonable perforation parameters. Gas wells are different from wells because of their seepage properties. Therefore, the choice of perforation parameters is also different from that of wells. According to the seepage law of the gas well and the characteristics of the gas layer being contaminated by drilling mud, the influence of perforation parameters on gas well productivity is analyzed. At the same time, comparison is made with the well, and examples are given. It is suggested that the effect of hole depth near the well is stronger than that of the oil well. After the pollution zone is exceeded, the hole diameter becomes the first parameter of influence, which is totally different from the well.