The research shows that Shan_2~3, main reservoir rock type is quartzose standstone, that of He_8~1, is lithic sandstone and Heg_8~2, rock type is nearly single lithic sandstone.

• 研究区山西组山_2~3段储集层岩石类型主要为石英砂岩,下石盒子组盒_8~1段岩石类型主要为岩屑砂岩,盒_8~2段岩石类型几乎全为岩屑砂岩。