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文中对濮城油田南区沙二上2+3储层的非均质性从微观、层内、层间、平面等四个方面作了系统研究，指出本区储层储集空间以粒间孔、粒内溶蚀孔为主。孔喉组合以中孔隙、中细喉道为主。层内非均质性较强，层内非均质性与居内垂向韵律特征及沉积微相关系密切。其中以水道微相层内非均质性最强。层内夹层多，层间渗透率非均质性较弱，层间隔层分布较为稳定，平面非均质性强度总体上介于居内、层间之间。在油田开发生产中反映以层内矛盾为主，所以研究层内非均质特征及剩余油分布并制定相应的调整挖潜措施是今后的工作重点。
This paper systematically studies the heterogeneity of 2 + 3 reservoirs in Sha 2 on the south of Pucheng oilfield from four aspects: microscopic, intra-layer, inter-layer and plane. It is pointed out that the reservoir storage space in this area is composed of intergranular Hole, the main dissolution of the intragranular hole. Pore-throat combination to medium-porosity, throat-based. The intra-layer heterogeneity is strong, and the intra-layer heterogeneity is closely related to the vertical rhythm and sedimentary microfacies. Among them, waterway microfacies layer is the most heterogeneous. There are many interlayers in the layers, and the interlayer permeability heterogeneity is weak. The distribution of interlamellar layers is stable, and the plane heterogeneity is generally in between. In the development and production of oilfields, it is mainly reflected in the intra-layer conflicts. Therefore, it is the focus of work in the future to study the in-layer heterogeneity and the distribution of remaining oil and formulate corresponding adjustment and tapping measures.