通过整理大量的钻井、测井、地震和其他综合研究资料,系统编制了上扬子地区震旦系各层段的岩相古地理图,进行了较为系统的沉积储集层研究。该研究显示震旦纪上扬子台地是一个半孤立的台地。震旦系沉积可以划分为前台地沉积、碳酸盐岩台地沉积和局限海盆沉积。紧邻上扬子台地西部边缘发育的川滇大裂谷对上扬子台地的演化、沉积古地理格局的形成及沉积相带的展布有着重要影响。灯影期,上扬子台地曾经有过一次由裂谷活动导致的快速沉降,经历了一次短暂的由台地到海盆的变化。岩相古地理的演变控制着四川盆地震旦系沉积储集层的形成与分布,也控制着该区常规油气及页岩气的形成与分布。 By finishing a great deal of drilling, logging, earthquakes and other comprehensive research data, we have systematically compiled the lithofacies palaeogeography maps of the Sinian strata in the Upper Yangtze region and systematically studied the sedimentary reservoirs. The study shows that the Sinian Upper Yangtze platform is a semi-isolated platform. Sinian sediments can be divided into foreground sediments, carbonate platform sediments and localized basin sediments. The Great Chuan-Dian Rift adjacent to the western margin of the upper Yangtze platform has an important influence on the evolution of the upper Yangtze platform, the formation of sedimentary palaeogeography and the distribution of sedimentary facies. During the light phase, there was once a rapid subsidence caused by Rift activities on the Yangtze platform, undergoing a brief period of change from platform to sea basin. The evolution of lithofacies palaeogeography controls the formation and distribution of Sinian sedimentary reservoirs in the Sichuan Basin and also controls the formation and distribution of conventional oil and gas and shale gas in the area.