通化盆地下白垩统烃源岩石油地质特征及生烃潜力研究
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中国地质调查局油气资源调查中心,中国地质调查局油气资源调查中心,中国地质调查局油气资源调查中心,中国地质调查局油气资源调查中心,中国地质调查局油气资源调查中心,中国地质调查局油气资源调查中心

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Petroleum Geologic Features and Generation Potential of the Lower Cretaceous Hydrocarbon Source Rocks in the Tonghua Basin
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Oil and Gas Survey China Geological Survey,Oil and Gas Survey China Geological Survey,Oil and Gas Survey China Geological Survey,Oil and Gas Survey China Geological Survey,Oil and Gas Survey China Geological Survey,Oil and Gas Survey China Geological Survey

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    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, as a fault basin overlying the ArcheanProterozoic metamorphic basement, is one of shale oil and gas prospect areas located in the eastern periphery of the Songliao Basin. Poor understanding of petroleum and gas resources status restricts the subsequent oil and gas exploration work. The well Tongdi 1 was drilled in order to reveal the occurrence states of low Cretaceous hydrocarbon source rocks and hydrocarbon generating potential of shale oil and gas. The core samples were systematic carried out, and the maturity test, type and abundance of organic matter were also completed. The experimental test results show that: the organic matter abundance of dark mudstones in low Cretaceous Hengtongshan Formation in the Tonghua basin is relative high and dominated by type Ⅰ~Ⅱ1, locally with type Ⅲ, and vitrinite ranges from 0.972% to 1.127%, suggesting that it has entered a mature stage with a large number of hydrocarbon generating; The organic matter abundance of dark mudstone in the Xiahuapidianzi Formation is high, dominated by type Ⅰ, locally with type Ⅱ and type Ⅲ, and Vitrinite reflectance are from 0.986% to 1.399%, suggesting that it has entered a mature stage of a large number of hydrocarbon generating. Their geochemical features are similar to other shale gas in the world.

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王丹丹,周新桂,李世臻,张文浩,刘卫彬,林燕华.2017.通化盆地下白垩统烃源岩石油地质特征及生烃潜力研究[J].地质学报,91(9):2119-2130.
WANG Dandan, ZHOU Xingui, LI Shizhen, ZHANG Wenhao, LIU Weibin, LIN Yanhua.2017. Petroleum Geologic Features and Generation Potential of the Lower Cretaceous Hydrocarbon Source Rocks in the Tonghua Basin[J]. Acta Geologica Sinica,91(9):2119-2130.

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  • 收稿日期:2016-04-19
  • 最后修改日期:2016-08-12
  • 录用日期:2016-08-16
  • 在线发布日期: 2017-09-14
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