砂岩主要的成岩作用包括机械压实作用、胶结作用、溶蚀溶解作用。
The main diagenesis types of sandstones are the mechanical compression, cementation and dissolution.
成岩作用中机械压实和胶结作用使孔隙大量减少，而溶蚀作用和构造作用形成的裂缝有效地改善了储层物性。
Diagenesis including compaction and cementation may reduce pores a lot. And fractures formed by dissolution and tectonism can effectively improve physical property.
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