中国东部油区油气藏的纵向分布特征

The Vertical Distribution Characteristics of Oil and Gas Reservoir in Eastern Petroleum Province in China

论述了中国东部油区（松辽、渤海湾盆地）的油气藏分布特征，认为区域盖层及成岩作用是控制油气纵向分布的主要因素，并依此划分出上、中、下3个含油气系统；描述了各系统内的流体、油气源和储盖层特征，指出中部含油气系统具有最好的储盖组合，是资源最为丰富的领域。

The distribution characteristics of the east petroleum province of China (including Songliao Basin, Bohai Gulf Basin) have been studied in this paper. It is considered that the main factors controlling the hydrocarbon distribution in vertical are regional caps and diagenesis. There are three oil and gas-bearing systems, the upper,the middle and the lower one. The fluid,the source and the reservoir-cap combination of each system are discribed. The middle system is the best combination and the most enrichment of resources.