Cretaceous sandstone reservoir is of primary pore type.
白垩系储层以原生孔隙为主。
The Donghe sandstone is composed of denudation facies, primary pore facies, denudation-primary pore facies and carbonate cementation facies.
东河砂岩由溶蚀相、原生孔隙相、溶蚀-原生孔隙相和碳酸盐胶结相组成。
The early diagenesis mainly influences the development of primary pore and the late diagenesis mainly influences the development of secondary pores.
早期成岩作用主要影响原生孔隙的发育，晚期成岩作用影响次生孔隙的发育。
The early diagenesis mainly influences the development of primary pore and the late diagenesis mainly influences the development of secondary pores.
早期成岩作用主要影响原生孔隙的发育，晚期成岩作用影响次生孔隙的发育。
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