| 地球系统科学与成矿学研究 |
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| 引用本文： | 李丕龙.地球系统科学与成矿学研究[J].地学前缘,2004,11(1):0-0. |
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| 作者姓名： | 李丕龙 |
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| 作者单位： | 胜利油田有限公司,山东,东营,257015 |
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| 基金项目： | 中国石油化工集团公司重点科技攻关项目(10501) |
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| 摘 要： | 以济阳坳陷为例 ,总结了“富集有机质”烃源岩的沉积和地化特征 ,分析了其资源潜力。“七五”期间在牛 38井钻探过程中发现了沙三下亚段 (E2 -3 s下3 )“富集有机质”烃源岩 ,其后又相继发现了沙四上亚段和沙一下亚段 (E2 -3 s上4和E2 -3 s下1 )两套“富集有机质”烃源岩。这 3套“富集有机质”烃源岩均对应着盆地深断陷期三级层序的湖侵体系域 ,岩性以深湖相页岩、油页岩和纹层泥岩为主 ,具有较强的沉积韵律性 ,表明沉积环境具有闭流性质 ,利于有机质的形成和保存。这些烃源岩均具有有机质丰度高、生烃潜力大和非均质性强的特点。资源评价历史和油源对比研究表明 ,区内的大型油气田主要与“富集有机质”烃源岩有关
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| 关 键 词： | 济阳坳陷 “富集有机质”烃源岩 分散有机质 沉积韵律 资源潜力 |
| 文章编号： | 1005-2321(2004)01-0317-06 |
| 修稿时间： | 2004年2月17日 |
THE ORGANIC-RICH HYDROCARBON SOURCE ROCKS AND THEIR RESOURCE POTENTIALS IN JIYANG DEPRESSION |
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| LI Pi-long.THE ORGANIC-RICH HYDROCARBON SOURCE ROCKS AND THEIR RESOURCE POTENTIALS IN JIYANG DEPRESSION[J].Earth Science Frontiers,2004,11(1):0-0. |
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| Authors: | LI Pi-long |
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| Abstract: | The organic-rich hydrocarbon source rocks in Jiyang Depression are analyzed for their main sedimentary and geochemistry characteristics and resource potentials. The E (2-3)s~l 3 organic-rich hydrocarbon source rocks was found first during the seventh five year plan in the well Niu38, then followed by E (2-3)s~u 4 and E (2-3)s~l 1. The three sedimentary unit all belong to the lacustrine transgression system tracts of different third-order sequence formed during the basin intense rift stage. The lithology assemblages consist mainly of deep-lacustrine shale, oil shale and laminated mudstone with strong sedimentary rhythm, which indicate that the sedimentary environments bear some characteristics of closed lake and favor the formation and preservation of organic matter. The hydrocarbon source rocks all have high abundance of organic matter, high hydrocarbon potential and show great heterogeneity. The resource evaluation history analysis and oil and source correlations show that the giant oil fields in Jiyang depression are mainly associated with the organic-rich hydrocarbon source rocks. |
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| Keywords: | Jiyang Depression organic-rich hydrocarbon source rocks discrete organic matter sedimentary rhythm resource potential |
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