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本文分析了东海西湖凹陷保俶斜坡下第三系始新统平湖组煤层发育状况，研究了平湖组煤的有机质特征、生烃潜量及煤与原油多地球化学组成特征上的相似性，探讨了煤的生、排烃特征。提出始新统平湖组煤是重要的烃源岩，目前斜坡地区始新统平湖组煤正处于油藏形成的最佳期，斜坡所产原油有它的重要贡献。
This paper analyzes the development of the coal seam of the Pinghu Formation in the Paleocene Paleozoic under the slope of Baotu in the Xihu Sag, East China Sea. The characteristics of organic matter, hydrocarbon generation potential and multi-geochemical composition of coal and crude oil in Pinghu Formation are discussed. The raw coal, hydrocarbon expulsion characteristics. It is suggested that the coal from the Eocene Pinghu Formation is an important hydrocarbon source rock. Currently, the Eocene Pinghu Formation coal in the slope area is in the best stage of oil formation. The crude oil produced from the slope has its important contribution.