金湖凹陷西园－崔庄地区阜二段储层（不论是生物粒屑灰岩还是砂岩）的成岩作用及其孔隙结构都与其含油性关系密切。含油的储层成岩作用浅、物性好、孔喉大、孔隙连通性好；不含油的砂岩和灰岩碳酸盐胶结和颗粒次生加大作用明显加强，物性和孔隙结构差，基本上失去了储集性。由该区的油气成因模式发现，未熟油的生成和聚集时间早（相当于早成岩Ａ亚期与Ｂ亚期的过渡期），较早进入储层的油气抑制了进一步的胶结、颗粒加大等作用，使其仍保持着早成岩Ｂ亚期初期的物性和孔隙结构。储层性质受控于成岩演化，又受控于油气聚集和断块差异活动。 Diagenesis and pore structure of the Fu2 member reservoir in the Xiyuan-Cuihuang area, Jinhu sag, are closely related to their oil content. The oil-bearing reservoirs have shallow diagenesis, good physical properties, large pore throats, and good pore connectivity. The oil-free sandstones and limestone carbonate cements and particle secondary enrichment are obviously strengthened, and the physical properties and pore structure are poor and are basically lost The reservoir. According to the hydrocarbon genesis model of this area, the immature oil was formed and accumulated earlier (equivalent to the transition period between A and B stages of early diagenesis), and earlier oil and gas entering the reservoir inhibited further cementing and increased grain size And so on, so that it still maintains the physical properties and pore structure in the early stage of early diagenetic B sub-period. Reservoir properties are controlled by diagenetic evolution and controlled by hydrocarbon accumulation and fault block activities.