东濮凹陷文留斜坡石碳二叠系烃源岩生烃评价

针对东濮凹陷文留斜坡的石炭二叠系经历了复杂的构造—埋藏史,烃源岩曾发生多次生烃演化的问题,采用构造—埋藏史分析、磷灰石裂变径迹测试和EASY%Ro数值模拟技术,深入研究了石炭二叠系烃源岩的生烃演化历史,探讨了石炭二叠系生烃作用发生的构造期次、生烃强度,结果表明其石炭二叠系烃源岩曾发生过三次重要的生烃作用过程,其分别发生在海西—印支期、喜山早期和喜山晚期,得出了主要生烃作用发生在喜山期的重要结论,并提出了文留斜坡是有望实现东濮凹陷石炭二叠系油气勘探更大突破的有利地区。

Evaluation of hydrocarbon-generation of permo-carboniferous source rocks in Wenliu incline ramp of Dopu depression

In view of the problem that the Permo-Carboniferous has come through complicated tectonic-burial history of the Wenliu incline ramp in the Dongpu Depression,and hydrocarbon-generation evolution has taken place many times.Using analysis of tectonic-burial history,the fission tracks testing of apatites and the numerical simulation of EASY%Ro,the paper reveals the evolution process,the tectonic episodes and the strength of hydrocarbon-generation of Permo-Carboniferous source rocks.It has came to a conclusion that there were hydrocarbon-generation processes since the late Paleozoic formation,and that the more hydrocarbon-generation of Permo-Carboniferous source rocks took place in the Cenozoic.Finally the paper brings forward that the area of Wenliu incline ramp is an advantage zone for exploration of the Permo-Carboniferous oil & gas in the Dopu Depression.