苏里格气田致密低渗储集层具有很强的压敏性。文章通过岩心应力敏感实验研究了渗透率随有效压力的变化规律。渗透率随有效压力的增大而降低，不可逆损害率为0.55％～24％，平均为8.1％。利用平面径向流理论推导出了考虑应力敏感的气井压力公式，利用该公式可定量分析应力敏感对气井废弃压力的影响，再结合简易的采收率计算方法研究了应力敏感对采收率的影响。

Tight and lowpermeability reservoirs have obvious stress-sensitivity phenomenon. The relationship between permeability ratio and effective stress is established by the stress-sensitivity experiment of core and the research on the rules of core permeability changing with effective stress. Effective permeability reduces with the increasing of effective pressure .The inconvertible permeability damages reach to 0.55％～24％ and the average is 8.1％.The pressure equation considering stress-sensitivity of gas well can be given by the influence of stress-sensitivity on abandonment pressure. And then the influence of stress-sensitivity on recovery ratio are studied referring to a simple equation compution of recovery ratio.