通过10余口钻井岩心观察、描述,结合岩性、沉积构造、剖面结构等识别标志研究,在中央隆起带东河塘组中识别出前滨、临滨和三角洲;根据进一步的沉积相特征和井间沉积相对比研究,系统编制了中央隆起带东河塘组下砂岩段和上砂岩段沉积相平面分布图,研究了其沉积相平面分布及垂向演化特征。 Through the observation and description of more than 10 drilling cores and the identification of lithofacies, sedimentary structures and cross-section structures, the foreshore, Linbin and delta are identified in the Donghutang Formation of the Central Uplift Belt. According to the characteristics of further sedimentary facies and wells The sedimentary facies distribution pattern of the Lower Hedong Formation and the upper sandstone of Donghengtang Formation in the Central Uplift Belt was systemically studied and the distribution and vertical evolution characteristics of sedimentary facies were studied.