corrosion effect of the acidulous water released from conversion process of clay minerals on clastic particles and cement and later injection of hydrocarbon have improvement and storage effects on reservoir primary pores to certain degree.

• 粘土矿物在转化过程中释放的酸性水对碎屑颗粒和胶结物的溶蚀作用及烃类的后期注入在一定程度上起到了对储层原生孔隙的改善和保存作用。