建立了具有压敏效应的试井模型，通过长庆苏里格气田气井的实例应用，分析了压敏效应对不稳定试井曲线特征的影响。应用考虑应力敏感渗流模型，不稳定压力动态试井曲线特征表明，拟压力及其导数曲线开始时为一直线，随着无因次渗透率模量的增加，曲线往上翘起，无因次渗透率模量越大，上翘越明显，此项特征可能是气井应力敏感的反映。此外，同一口井不同时间试井曲线特征不同，第2次解释储层渗透率都明显较第1次的值低，而且双对数曲线上翘得更早更快，表现出压敏效应对试井曲线的影响。研究结果有利于明确压敏效应对不稳定试井模型特征的影响，对我国压力敏感气藏不稳定试井分析具有一定的指导意义。

In order to study the effect of stress-sensitive permeability on transient pressure in sandfacies, this paper uses the concept of permeability modulus, and presents a pressure transient well-test model for stress-sensitive fissured composite gas reservoirs, which includes strong nonlinear equations. Uses of transformation to linearize the equations have been presented to solve the nonlinear equations and to get zero\|order solution. The result is as follows: at the beginning, the characteristic curves of pseudo-pressure function and its derivative curves are linear lines and then they rise up with increase of dimensionless permeability modulus, which are similar to the model characteristic of no stress-sensitive fissured composite gas reservoirs with close out boundary or low permeability gas reservoirs.