The characteristics of compaction and solution, cementation, secondary porosity during diagenesis processes and the distribution of secondary porosity zone in Chezhen Depression are described.
以岩石学特征为基础，描述了成岩过程中压实与压溶作用、胶结作用、溶解作用与次生孔隙的特征，以及次生孔隙带在本区的分布。
Thispaper proposes the concept of background value and cut off value, a merthodfor indicating oil-gas zone by formation cementation exponent is detailed.
本文提出的地层胶结指数法，引入了背景值和下限值概念，用它指示油气层，具有更高的分辨率和直观性。
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