张明星;郭耿生;张琳璞;

• 1:中国石化胜利油田分公司石油开发中心有限公司

摘要(Abstract)：

采用有机地球化学方法和盆地模拟技术,结合济阳坳陷青东凹陷古近系沙河街组构造、沉积等方面的研究成果,分析研究区古近系烃源岩的生烃潜力、演化特征等。结果表明:研究区主要存在沙三下亚段和沙四上亚段两套烃源岩,烃源岩具有"北厚南薄"的发育特征,在凹陷中—北部深洼带最为发育,往南厚度变小;烃源岩有机质丰度较高,有机质类型较好(Ⅰ—Ⅱ1),具有良好的生烃物质基础;烃源岩处于低熟—成熟阶段,成熟烃源岩的分布范围有限,主要局限于北部洼陷和中部洼陷的深洼区,但研究区沙四段烃源岩具有形成低熟油的基本条件,为研究区油气聚集创造一定的物质基础。

关键词(KeyWords)：烃源岩;地球化学特征;生烃潜力;低熟油;古近系;青东凹陷;济阳坳陷

Abstract:

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基金项目(Foundation):

作者(Author):张明星;郭耿生;张琳璞;

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