东营凹陷胜坨地区油源及其成藏特征研究

根据油砂及烃源岩样品的色谱、色质等多种地球化学分析结果，胜坨地区存在3种类型的原油：第Ⅰ类原油来源于胜坨地区南侧、民丰洼陷沙四上亚段烃源岩；第Ⅱ类原油来源于胜坨地区北侧和利津洼陷沙三下亚段烃源岩；第Ⅲ类原油为沙四上、沙三下亚段烃源岩混合来源，其主要分布在断裂发育区，说明断裂对混源的作用较大。在此基础上进行了不同类型原油运移、成藏特征研究，建立了该区的复式油气成藏模式。其结果为该区下步开发奠定了基础。

Study of oil source and hydrocarbon accumulation characteristics in Shengtuo Region of Dongying Depression

Based on the results of geochemical analysis including gas chromatography and mass chromatography of oil sand and source rock samples, it is confirmed that there are three types of oils in Shengtuo region. Type I came from upper Es4 sub - source rock in Minfeng Sag, south of Shengtuo; Type II came from the Es3 sub - source rock in the north of Shengtuo and Lijin Sag; and Type ? came from both the upper Es4 and lower Es3 source rocks, mainly distributed in areas where faults were well developed, indicating that faults had significant impacts on Type III oil. The migration and accumulation of different types of hydrocarbon are studied on this basis, and complex reservoir forming pattern is established for this region, thus providing basis for next step development in this region.