从襄城凹陷所处的区域构造背景、沉积环境变迁等主要地质问题出发,结合烃及原油的有机地球化学特征,采用有机显微组分分析、生物标志物检测、有机岩石学研究等方法,对烃有机质丰度、类型,特别是生烃母质来源进行了深入的分析,阐明了襄城凹陷核桃园组未熟油的判别标志和成因类型,探讨了未熟—低熟油藏形成的主要地质条件,指出研究区勘探应以核二段为主要目的层,以寻找短距离运移聚集、自生自储的断鼻、岩性、裂隙油气藏为主。 Based on the regional geological background and the changes of sedimentary environment in Xiangcheng Sag and other major geological problems, organic micro-component analysis, biomarker detection and organic petrology were used in combination with the organic geochemical characteristics of hydrocarbons and crude oil. The abundance and type of hydrocarbon organic matter, especially the source of hydrocarbon generation parent material, are analyzed in depth. The distinguishing marks and genetic types of unripe oil in Hetaoyuan Formation in Xiangcheng Depression are clarified. The main geological conditions of immature and low mature oil reservoirs are discussed It is pointed out that the exploration of the study area should mainly take the second member of the core as the target layer, in order to find the short-distance migration and accumulation, the self-generated and self-stored fault nose, lithology and fissured reservoirs.