Based on rock mineral and geochemical analysis, microscopic observation, physical property measurement, and thin laminae separation test, etc., the characteristics of typical laminae of the Paleogene Shahejie Formation carbonate-rich shale in the Jiyang Depression were analyzed, and the organic matter abundance, reservoir properties, and oil-bearing properties of different laminae were compared. Typical shale reservoir-flow structures were classified, and the mobility of oil in different types of shale reservoir-flow structure was compared. The results show that the repeated superposition of mud laminae and calcite laminae are the main layer structure of carbonate-rich shales. The calcite laminae are divided into micritic calcite laminae, sparry calcite laminae and fibrous calcite vein. The mud-rich laminae are the main contributor to the organic matter abundance and porosity of shale, with the best hydrocarbon generation potential, reservoir capacity, and oil-bearing property. The micritic calcite laminae also have relatively good hydrocarbon generation potential, reservoir capacity and oil-bearing property. The sparry calcite laminae and fibrous calcite vein have good permeability and conductivity. Four types of shale reservoir-flow structure are developed in the carbonate-rich shale, and the mobility of oil in each type of reservoir-flow structure is in descending order: sparry calcite laminae enriched shale reservoir-flow structure, mixed calcite laminae enriched shale reservoir-flow structure, fibrous calcite vein enriched shale reservoir-flow structure, and micritic calcite laminae enriched shale reservoir-flow structure. The exploration targets of carbonate-rich shale in the Jiyang Depression Shahejie Formation are different in terms of reservoir-flow structure at different thermal evolution stages.

基于岩石矿物和地球化学分析、显微观察、物性测量和薄纹层分离试验等，对济阳坳陷古近系沙河街组富碳酸盐页岩典型纹层特征进行了分析，并对有机质丰度进行了分析。 、不同纹层的储层物性及含油性进行了比较。对典型页岩储流结构进行了分类，比较了不同类型页岩储流结构中石油的流动性。结果表明，泥纹层和方解石纹层的反复叠置是富碳酸盐页岩的主要层状结构。方解石纹层分为泥晶方解石纹层、亮晶方解石纹层和纤维状方解石脉。富泥纹层是页岩有机质丰度和孔隙度的主要贡献者，具有最好的生烃潜力、储集能力和含油性。泥晶方解石纹层也具有较好的生烃潜力、储集能力和含油性。晶状方解石纹层和纤维状方解石脉具有良好的渗透性和导电性。富碳酸盐页岩发育4种类型的页岩储流结构，每种储流结构中石油的流动性由大到小依次为：亮晶方解石纹层富集页岩储流结构、混合方解石纹层富集页岩储流结构、纤维状方解石脉富集页岩储流结构、泥晶方解石纹层富集页岩储集流结构。济阳坳陷沙河街组富碳酸盐页岩的勘探目标在不同热演化阶段的储流结构上存在差异。