Middle Yangzi Region is an ancient stable latform of continental crust type that is characterized by great.thickness of lithosphere and low heat flow value. Post indo-China structural reformation could not change the whole stable framework of the platform

nor could itessentially damage the Lower Paleozoic oil pools of the region. The protection of Silurian detached formations and the delay of hydrocarbon evolution resulted from cold crust favour theremigration

accumulation and preservation of deep seated oil and gas. The Cenozoic extending basins in which Jianghan Basin is the main body is not located at the continental riftzone

its formation time is new and it is less disturbed. It could be considered as a oil provincewith completely developed structural configuration.