垦东凸起石油地球化学特征与成藏系统划分

Petroleum geochemistry characteristics and reservoir-forming system division of Kendong arch

通过大量的实际资料分析 ,查明了垦东地区石油的地球化学特征 ;确认了两个主要油源 ,即桩东凹陷西洼和孤南洼陷。其中以桩东凹陷西洼油源最为重要。结合各凹陷盆地模拟成果 ,划分出两个主要成藏系统和两个次要成藏系统 ,不同的成藏系统形成了不同类型和规模的油藏。

Geochemistry characteristics of the petroleum in Kendong arch are determined and two main oil?source--western subsag of Zhuangdong sag and Gunan subsag are confirmed through a large number of actual data analyses. The oil?source in the western subsag is more important and two major and minor reservoir?forming systems are divided combining with the simulation results of each sag basin. Different reservoir?forming systems form different types and scales of oil reservoirs.