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研究区杜家台油层的储集砂体属近源、快速堆积的扇三角洲成因，主要的储集岩石类型包括细砾岩类、不等粒砂岩类、砂岩类及粉砂岩类。不同岩石类型其物性特征差异较大，岩样分析结果表明，储集岩主要属中低渗透储层，其岩性、物性、电性及含油性具有一定的对应关系，面孔隙度与渗透率也具有较好的正相关性。另外，储集岩石类型的展布明显地受沉积微相的控制。
The reservoir sand body of the Dujiatai oil layer in the study area is of a near-source and rapidly accumulating Fan delta origin. The main reservoir rock types include fine conglomerates, unequal grain sandstones, sandstones and siltstones. The physical characteristics of different rock types are quite different. The results of rock samples show that the reservoir rocks are mainly medium-low permeability reservoirs, and their lithologies, physical properties, electrical properties and oil-bearing properties have some corresponding relationships. The porosity and permeability Also has a good positive correlation. In addition, the distribution of reservoir rock types is clearly controlled by sedimentary microfacies.