| 大牛地气田石炭—二叠系烃源岩生烃潜力 |
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| 引用本文： | 吕剑虹,缪九军,邱祁.大牛地气田石炭—二叠系烃源岩生烃潜力[J].地质学刊,2018,42(1):60-69. |
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| 作者姓名： | 吕剑虹 缪九军 邱祁 |
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| 作者单位： | 中石化石油勘探开发研究院无锡石油地质研究所 |
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| 基金项目： | 国家科技重大专项“海相碳酸盐岩层系油气资源潜力评价与战略选区”（2017ZX05-005-004） |
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| 摘 要： | 大牛地气田上古生界石炭—二叠系烃源岩为煤系烃源岩(主要为煤岩和暗色泥岩),有机质类型以Ⅲ型干酪根为主,烃源岩演化成熟度较高,Ro基本在1.5%左右。烃源岩存在3期生烃演化过程,分别为三叠纪期间、侏罗纪期间和古近纪期间。烃源岩(泥岩+煤岩)累计生烃量为8万多亿m~3,煤岩生烃贡献占85%。石炭—二叠系烃源岩现今累计生烃强度高值区主要分布在大牛地气田的东南部、西北部以及西部地区。
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| 关 键 词： | 上古生界 烃源岩 生烃期次 生烃强度 大牛地气田 鄂尔多斯盆地 |
Analysis of the hydrocarbon generation potential of Carboniferous-Permian source rocks of the Daniudi gas field |
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| LYU Jianhong,MIAO Jiujun,QIU Qi.Analysis of the hydrocarbon generation potential of Carboniferous-Permian source rocks of the Daniudi gas field[J].Jiangsu Geology,2018,42(1):60-69. |
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| Authors: | LYU Jianhong MIAO Jiujun QIU Qi |
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| Abstract: | The Carboniferous-Permian source rock of the Daniudi gas field is coal-measure (featuring coal rock and dark mudstone). Its main type of organic matters is kerogen of type III. Its maturity level is relatively high, whose vitrinite reflectance (Ro) is around 1.5%. There are three stages of evolution of hydrocarbon generation, respectively in the Triassic period, the Jurassic period and the Tertiary period. The cumulative amount of hydrocarbon generation of the source rocks (coal rock and mudstone) is more than 8 trillion m3(coal as the primary source, accounting for 85% of total output). The current areas of intensive cumulative hydrocarbon-generating are located in the southeastern, northwestern and western part of the Daniudi gas field. |
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| Keywords: | Upper Palaeozoic source rock hydrocarbon-generating stage hydrocarbon-generating intensity Daniudi gas field Ordos Basin |
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