Majority of the oilfields in the Hongshanzui region are small and complex fault block reservoirs, and the evolution of the sedimentary system under the sequence stratigrapic background has been a controversial topic. Six middle-term base-level cycles were divided, and eight types of lithofacies assemblages were recognized based on the stacking patterns and volumetric partitioning according to the core, well logs, and seismic data correlated with the field investigation of outcrops. Furthermore, the evolution of the sedimentary system under the sequence stratigraphic framework was clarified. Among the six middle-term base-levels, MSC1 belongs to the retrogradational system tract, and the sediment distribution exhibits the characteristics of “large plain and small front.” MSC2 belongs to the transgression system tract, and the sediment distribution exhibits has the characteristics of “small plain and large front.” In the case of MSC5 and MSC6, the sediment distribution exhibits the characteristics of “dominant channel and repeated channel-switching.” Further, the controlling factors of tectonic, base level, climate, and minerals are discussed.This research has been applied to the exploration and development of the Hongshanzui oilfield, and a certain benefit has been achieved.

红山嘴地区多数油田为小型复杂断块油藏，层积层序背景下的沉积体系演化一直是一个有争议的话题。根据岩心，测井和与露头野外调查相关的地震数据，根据堆积模式和体积划分，划分了六个中期基层旋回，并识别了八种岩相组合。此外，阐明了层序地层学框架下沉积体系的演化。在六个中期基层中，MSC1属于回生系统道，沉积物分布具有“大平原和小锋面”的特征。MSC2属于海侵系统域，泥沙分布展品具有“小平原，大锋面”的特点。在MSC5和MSC6的情况下，沉积物分布表现出“主导通道和重复通道切换”的特征。进一步讨论了构造，基层，气候和矿产的控制因素。本研究已应用于红山嘴油田的勘探开发，取得了一定的效益。