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区内下第三系储层经历了压实、胶结、溶蚀、破裂等一系列成岩作用，成岩作用十分复杂，成岩现象也十分丰富，特征十分明显。储层储集性能的成岩控因研究表明，压实作用、胶结作用是使储层物性变差、孔隙度降低的两个重要成岩控因；而溶蚀作用，特别是深埋溶蚀作用是改善储层储集性能、使储层物性变好的成岩控因之一。
The Tertiary reservoirs in the area have undergone a series of diagenesis such as compaction, cementation, dissolution and rupture. Diagenesis is very complicated and diagenetic phenomena are also very rich with obvious features. The study of diagenetic control of reservoir properties shows that compaction and cementation are two important diagenetic control factors that cause the reservoir properties to deteriorate and the porosity decrease. However, dissolution, especially deep-buried dissolution, Layer reservoir properties, the reservoir properties become better diagenetic control one of the reasons.