表生成岩作用是形成良好储层的主要作用。
Epidiagenesis is the mainly factor to form good sandstone reservoir.
岩石经历了早期成岩作用、表生成岩作用和晚期成岩作用。
The rocks have experienced early diagenesis, epidiagenesis and late diagenesis.
根据成岩作用现象及划分标志，本区侏罗系地层可划归于埋藏成岩阶段的早成岩B亚期，晚成岩A亚期及表生成岩期。
It is evidently concluded that Jurassic rocks in this area have undergone burial diagenesis, and can be classified as B sub-period of eogenetic, A sub-period of telogenetic and epidiagentic stages.
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