| 塔里木盆地石油运移的孢粉学证据 |
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| 引用本文： | 江德昕,王永栋,魏江.塔里木盆地石油运移的孢粉学证据[J].沉积学报,2002,20(3):524-528. |
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| 作者姓名： | 江德昕 王永栋 魏江 |
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| 作者单位： | 1 中国科学院兰州地质研究所,兰州,730000; |
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| 基金项目： | 国家自然科学基金，R850879， |
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| 摘 要： | 基于塔里木盆地塔北、库车、喀什和叶城四个含油气区 44个原油样品和 3个天然气样品中发现的化石孢子花粉89属183种的研究, 在该盆地地质背景下探讨了石油运移的机理。研究内容包括石油运移的通道、相态、方向、路线和期次。研究结果表明, 在油气源岩成岩过程中由异常高压形成的微裂隙是石油初次运移的通道 断层、不整合面、节理和其他裂隙是石油二次运移的通道 在运移过程中石油可保持其原有相态, 液态与气态混合相是塔里木盆地石油运移过程中的主要相态 石油运移的方向因油藏类型而异, 或以垂直运移为主, 或以侧向运移为主。
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| 关 键 词： | 孢子花粉 石油运移 油藏 石炭系 三叠系 侏罗系 |
| 文章编号： | 1000-0550(2002)03-0524-06 |
| 收稿时间： | 2001-05-07 |
| 修稿时间： | 2001年5月7日 |
Palynological Evidence for Petroleum Migration in Tarim Basin |
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| JIANG De-Xin,WANG Yong-Dong,WEI Jiang.Palynological Evidence for Petroleum Migration in Tarim Basin[J].Acta Sedimentologica Sinica,2002,20(3):524-528. |
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| Authors: | JIANG De-Xin WANG Yong-Dong WEI Jiang |
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| Institution: | 1 Lanzhou Institute of Geology, Chinese Academy of Sciences, Lanzhou,730000;2 Nanjing Institute of Geology and Paleontology, The Chinese Academy of Sciences,Nanjing,210008;Norfolk state university of usA,Norfolk VA23504 |
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| Abstract: | One hundred and eighty-three species of fossil spores and pollen were identified,that are referred to 89 genera found in 44 crude oil samples and 3 natural gas samples collected from the North Tarim, Kuche, Kashi and Yecheng petroliferous regions of Tarim Basin. Based on the investigations of the fossil spores and pollen found in oil and gas, the mechanisms of petroleum migration were discussed according to the geological background of the basin. The contents of this study include the passages, phase states, directions, routes and periodic sequences of petroleum migration. Judging from the spores and pollen in petroleum, it may be concluded that microfissures formed by abnormal high pressure during the diagenesis of petroleum source rocks could provide passages for the primary migration of petroleum; faults, unconformity surfaces, joints and other fissures could be the passages of the secondary migration of petroleum; petroleum might keep in the original phase state in the course of migration, and liquid and gaseous mixed phase might be the main phase state in the course of petroleum migration in Tarim Basin; and the main direction of petroleum migration could be represented by either vertical migration or lateral migration for different reservoir types. |
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| Keywords: | spore and pollen petroleum migration petroleum reservoir Carboniferous Triassic Jurassic |
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