鄂尔多斯盆地苏里格地区中二叠统石盒子组盒8下亚段砂岩属于低渗储层，因此在气藏开发时存在潜在的应力敏感性损害。通过对该区苏10井、苏11井和苏16井77个岩心样品采用围压升高—降低的方法进行应力敏感性实验，发现储层应力敏感性中—较强，非储层应力敏感性强。在结合前期对储层样品进行薄片、储集性能等的研究后，发现Ⅰ类、Ⅱ类储层砂岩，特别是其中含高岭石的岩屑石英砂岩在净围压为2 MPa时的渗透率较高，这类砂岩粒度多较粗，柔性岩屑含量较少，残余粒间孔隙和粒径较粗的高岭石晶间孔隙保存较好，在升压—降压过程中岩石受压力影响较小，因此表现出应力敏感性较弱，反之则较强。
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Sandstones in the lower part of Member 8 of Shihezi Formation in Sulige area, Ordos basin have stress sensitivity of damage in gas reservoir development because of low-permeability reservoirs. Experiments of stress sensitivity by elevating\|reducing the confining pressure with 77 samples from Su 10, Su 11, Su 16 Wells show the stress sensitivity of reservoirs from medium to less strong and that of non-reservoirs strong. The result with slice and reservoir quality researches suggests that the stress sensitivity of Ⅰ,Ⅱ sandstone reservoirs, especially the lithic quartz-sandstones containing kaolins with high permeability when confining pressure 2 MPa, is less strong. These coarse sandstones with less flexible cutting, have kept good residual pores between particles and intergranular pores between coarse-grained kaolins, less impacted when elevateing-reducing the confining pressure.