This article has detailedly elaborated the main diagenesis types of Upper Ordovician platform margin reefs and grain banks in TaZhong area and their affection on reef-bank reservoir quality.

• 摘要详细阐述了塔中上奥陶统台缘礁滩体主要成岩作用类型及其对礁滩体储层性质的影响，建立了碳酸盐岩成岩和孔隙演化史。