中文摘要：

地化分析表明渤南洼陷具备了形成页岩油的物质基础。根据总有机碳含量与含油性的关系确定了页岩油资源分级评价标准，将渤南洼陷沙三下亚段页岩油资源划分为3个等级进行评价。同时利用AlogR法获取氯仿沥青“A”，通过化学动力学方法恢复了烃类的损失部分，并用体积法对渤南洼陷不同级别泥页岩层段的页岩油资源量进行了计算。研究认为沙三下亚段具有较大的页岩油资源潜力，其中I级资源量明显高于Ⅱ、Ⅲ级，是油气资源勘探开发的有利目标。

英文摘要：

Geochemical analysis shows that Bonan Subsag has the material basis for the generation of shale oil. Be- cause of the characteristics of low porosity and low permeability of the oil shale, only partially enriched shale oil can be effectively exploited. According to the relationship between TOC and oil-bearing properties, the classifying and evaluating standards of the oil resources are determined, so three levels are graded and evaluated for the shale oil resources in Lower Member of Es3 of Bonan Subsag. At the same time, with the help of AlogR method, chloroform bitumen ＂A＂ is obtained; by means of chemical dynamic method, the loss of hydrocarbon group is recovered. Fi- nally the amount of the shale oil resources in different muddy intervals of the subsag are calculated. The studies show that Lower Member of Es3 is characterized by much bigger resource potentials, and moreover Grade I is better than Grade II and Grade III, so it is the favorable target for the exploration and development of the petroleum re-sources.