In oil field of China, fluvial and delta facies reservoir are main depositional facies type, and their geological reserve accounting for nearly 80% of total reserve of clasticrock facies.
中国油田河流相与三角洲相储层的地质储量占碎屑岩相总储量的近80%，是主要的沉积相类型。
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This article analyzed rock mineral properties, reservoir physical characteristics and pore structure features of Carboniferous and Triassic systems of clastic reservoir in Tahe oilfield.
The research on formation damage in carbonate reservoir is far from enough, which is not suitable with its importance, comparing with the depth of understanding on damage mechanism in clasticrock.