| 内蒙古石拐盆地下侏罗统武当沟组烃源岩有机地球化学特征 |
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| 引用本文： | 冯岩,杨才,郭佳城,夏宁,林海涛.内蒙古石拐盆地下侏罗统武当沟组烃源岩有机地球化学特征[J].地质与资源,2016,25(5):476-481. |
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| 作者姓名： | 冯岩 杨才 郭佳城 夏宁 林海涛 |
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| 作者单位： | 内蒙古自治区地质调查院, 内蒙古 呼和浩特 010020 |
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| 基金项目： | 内蒙古自治区地质矿产勘查基金“内蒙古自治区页岩气资源潜力调查评价”项目(编号2012-03-ZY01) |
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| 摘 要： | 内蒙古石拐盆地广泛发育下侏罗统武当沟组煤系烃源岩.在进行野外地质勘查、典型剖面实测、样品采集及实验分析基础上,进行了有机质丰度、有机质类型、有机质成熟度等有机地球化学特征研究,初步对其生烃潜力进行评价.研究认为,石拐盆地中下侏罗统武当沟组烃源岩TOC含量主要分布于0.7%~12.4%,有机质类型为II2型和III型,Ro分布于0.47%~0.71%之间,演化程度为未成熟—低成熟.武当沟组是内蒙古中部地区重要的生烃层系,具备非常规油气资源潜力.
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| 关 键 词： | 石拐盆地 武当沟组 烃源岩 有机地球化学 页岩气 内蒙古 |
| 收稿时间： | 2015-02-02 |
ORGANIC GEOCHEMISTRY OF THE SOURCE ROCKS OF LOWER JURASSIC WUDANGGOU FORMATION IN SHIGUAI BASIN,INNER MONGOLIA |
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| FENG Yan,YANG Cai,GUO Jia-cheng,XIA Ning,LIN Hai-tao.ORGANIC GEOCHEMISTRY OF THE SOURCE ROCKS OF LOWER JURASSIC WUDANGGOU FORMATION IN SHIGUAI BASIN,INNER MONGOLIA[J].Geology and Resources,2016,25(5):476-481. |
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| Authors: | FENG Yan YANG Cai GUO Jia-cheng XIA Ning LIN Hai-tao |
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| Institution: | Inner Mongolia Institute of Geological Survey, Hohhot 010020, China |
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| Abstract: | Dark mudstone and shale of Lower Jurassic Wudanggou Formation are well developed in the Shiguai Basin in Inner Mongolia. Based on geological exploration, typical profile survey, sampling and experimental analysis, the organic geochemical studies are conducted in the aspects of organic matter abundance, kerogen types and maturity of organic matter to evaluate the hydrocarbon potential. The total organic carbon (TOC) contents of the Lower Jurassic hydrocarbon source rocks of Wudanggou Formation range from 0.7% to 12.4%, corresponding to organic matter type of Ⅱ2-Ⅲ. The vitrinite reflectance is between 0.47% and 0.71%, indicating that the hydrocarbon source rocks mostly achieved low mature stage of evolution. The Wudanggou Formation is the important hydrocarbon source rock in the central area of Inner Mongolia, with potential of unconventional energy of shale gas. |
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| Keywords: | Shiguai Basin Wudanggou Formation hydrocarbon source rock organic geochemistry shale gas Inner Mongolia |
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