应力敏感效应普遍存在于低渗透气藏开发过程中。为了研究应力敏感条件下低渗透气藏不稳定渗流特征，在考虑渗透率应力敏感效应的基础上，建立了低渗透气藏不稳定渗流模型，通过模型求解和Stehfest数值反演方法获得了模型的实空间解，在此基础上实例分析了应力敏感对无限大边界、封闭边界及定压边界低渗透气藏不稳定渗流压力动态特征的影响。研究结果表明，井底压力与应力敏感的影响关系是相互的，井底压力越低，应力敏感的影响越为显著；反之，应力敏感的增强加快了井底压力的降低，应力敏感对低渗透气藏渗流的影响不能忽视。研究成果对应力敏感气藏的试井分析和现场生产指导具有一定实用价值。

Stress sensitivity effect widely exists in low permeability gas reservoir development process. In order to research unstable seepage characteristics of low permeability gas reservoir in stress sensitivity conditions, established is an unsteady seepage flow model based on the stress sensitivity effect and a real space solution is obtained through model solution and Stehfest numerical inversion method and analyzed is the effect of stress sensitivity on unstable seepage pressure dynamic characteristics of low permeability gas reservoir with infinite boundary, closed boundary and constant pressure boundary. The results show that the relationship between bottom hole pressure and stress sensitivity is mutual, the effect of stress sensitivity is particularly significant in case of lower bottom hole pressure and the effect of stress sensitivity on low permeability gas reservoir can not be neglected. The above study results can provide valuable reference for well testing analysis and in-site production in stress sensitive gas reservoir.