Therefore, the high quality oolitic beach reservoirs in the Feixianguan Formation are mainly resulted from dolomitization and non-selective dissolution in deep burial diagenetic stage.

• 由此认为，川东北飞仙关组鲕滩相储层储集性能的改善主要依赖于白云石化和深埋成岩阶段的非选择性溶蚀作用。