摘要
According to fluid inclusion and recovery of buried history, the authors discussed the timing of petroleum formation and stages of its accumulation in the third member of Shahejie Formation in the Binhai nose-shaped high structure. In accordance with tectonic activity, hydrocarbons-generating and exhausting history, oil and gas migrating and accumulating history, the authors consider that the hydrocarbon accumulation in the third member of Shahejie Formation was mainly constrained by correlation between hydrocarbon generation stage and structural development. Thus, a phenomenon that oil was distributed in the shallow place and gas was in the deep one occurs in the in the third member of Shahejie Formation as a prospecting areas for the large size petroleum pools.