Keywords Ordos Basin;Wushenqi Gasfield;Middle Permian;Xiashihezi Formation;shore-shallow lacustrine;beach and bar facies;quartzarenite;

• 鄂尔多斯盆地;乌审旗气田;中二叠统;下石盒子组;滨浅湖;滩坝相;石英砂岩;