通化盆地下白垩统烃源岩石油地质特征及生烃潜力研究

发布时间：2018-07-09 22:10

  本文选题：烃源岩 + 地球化学　； 参考：《地质学报》2017年09期

【摘要】：通化盆地是松辽盆地东部外围的油气远景区之一,烃源岩发育特征和生烃潜力等问题未知,制约着盆地基础油气资源研究和后续油气资源勘探部署工作。为揭示通化盆地下白垩统烃源岩生烃潜力和页岩油气的赋存状态,在盆地内部署通地1井,对岩芯样品进行系统取样,完成了暗色泥岩有机质丰度、类型和成熟度的测试工作。实验结果表明,通化盆地下白垩统亨通山组暗色泥岩有机质丰度较高,有机质类型以Ⅰ-Ⅱ1型为主,局部含有Ⅲ型,镜质组反射率分布范围为0.972%~1.127%,已进入大量生烃的成熟阶段;下桦皮甸子组暗色泥岩有机质丰度较高,有机质类型以Ⅰ型为主,局部含有Ⅱ和Ⅲ型,镜质组反射率在0.986%~1.399%之间,已进入大量生烃的成熟阶段。其地球化学特征和世界上许多页岩油气田的烃源岩有相似之处,综合研究表明通化盆地下白垩统具有较好的常规油气和页岩气生成潜力。
[Abstract]:Tonghua Basin is one of the oil and gas scenic spots in the eastern part of Songliao Basin. The source rock development characteristics and hydrocarbon generation potential are unknown, which restricts the basic oil and gas resources research and the subsequent exploration and deployment of oil and gas resources in the basin. In order to reveal the hydrocarbon generation potential of lower Cretaceous source rocks and the occurrence state of shale oil and gas in Tonghua Basin, Tongdi well 1 was deployed in the basin. The core samples were systematically sampled, and the organic matter abundance, type and maturity of dark mudstone were tested. The experimental results show that the dark mudstone of the Lower Cretaceous in Tonghua Basin has high organic matter abundance, mainly type 鈪，

本文编号：2110854