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应用辽河断陷盆地锦９１块于楼油层的岩心、录井及测井资料，采用过程沉积学方法，进行了沉积学研究。将扇三角洲前缘亚相划分为主体水道、近端砂坝、远端砂坝、砂坝间及前缘重力流沉积等５种沉积微相。主体水道以砂砾岩、含砾砂岩为主，呈正粒序。近端砂坝以含砾砂岩、砂岩为主，与远端砂坝一起构成反粒序。远端砂坝为砂岩、泥岩互层，整体向上变粗。砂坝间沉积以泥岩为主，可夹薄砂层。重力流沉积的典型特征为粗粒砂，砾质沉积物夹在厚层泥质沉积物中。在微相类型及其特征详细研究的基础上，总结了扇三角洲沉积模式及反映储层空间配置关系的地质模型。
The core, logging and well logging data of Yu91 oil layer in Jin91 block, Liaohe rift basin, are applied to study the sedimentology by the method of process sedimentology. The fan delta front subfacies are divided into five sedimentary microfacies, including the main channel, the proximal sand bar, the distal sand bar, the sand bar and the frontal gravity flow deposition. The main channel is glutenite, gravel sandstone, was positive grain order. The proximal sand bar is dominated by pebbly sandstone and sandstone, and together with the distal sand bar, it constitutes anti-grading. The distal sand bar is sandstone and mudstone interbed, and the whole is thicker and thicker. Sandstone between the dam deposition to the main sand, sand folder can be sand. Gravity flow deposits are typically characterized by coarse sand, gravel sediments trapped in thick muddy sediments. Based on the detailed study of microfacies types and their characteristics, the paper summarizes the fan delta sedimentary model and the geological model that reflects the relationship between the spatial distribution of reservoirs.