The main lithogenetic processes are mechanic compaction, cementation and corrosion.The lithogenesis commonly occurred at late stage, which had little effect on oil generation and accumulation.

• 主要的成岩作用有机械压实、胶结、溶蚀等，大部分储集岩的变化发生在晚成岩作用阶段，对油气生成、进入影响不大。