| 准噶尔盆地腹部油气充注与再次运移研究 |
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| 引用本文： | 邹华耀,郝芳,张柏桥,陈斌.准噶尔盆地腹部油气充注与再次运移研究[J].地质科学,2005,40(4):499-509. |
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| 作者姓名： | 邹华耀 郝芳 张柏桥 陈斌 |
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| 作者单位： | 1. 石油大学资源与信息学院, 北京, 102249;2. 中国地质大学石油系, 武汉, 430074 |
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| 摘 要： | 准噶尔盆地为一个经历多期构造运动的叠合型盆地。盆地腹部油气藏形成与演化是一个受多源、多期次油气充注与再次调整的复杂过程。采用烃源岩生烃史正演模拟与油气藏地质、地球化学反演分析相互验证的方法,表明腹部油气运聚可以分为早期、晚期和后期油气充注,即:早白垩世前的早期原油充注阶段,原油主要来自于下二叠统风城组烃源岩;晚白垩世以原油充注为主的晚期充注阶段,原油主要来源于上二叠统下乌尔禾组烃源岩;古近纪以来以天然气充注为主的后期充注阶段,天然气来自于风城组和下乌尔禾组烃源岩高过成熟阶段的产物。受喜马拉雅构造运动的影响,形成于中晚燕山期的腹部车莫古隆起发生掀斜作用,致使油气发生再次运移,调整后的腹部油气藏呈分散和小规模分布,油气藏类型由以构造圈闭为主变成以地层/岩性圈闭为主。
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| 关 键 词： | 油气充注 油气再运移 成藏史 准噶尔盆地腹部 |
| 文章编号： | 0563-5020（2005）04-0499-11 |
| 收稿时间： | 2004-03-15 |
| 修稿时间： | 2004-06-21 |
HISTORY OF HYDROCARBON-FILLING AND REMIGRATING IN HINTERLAND OF THE JUNGGAR BASIN |
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| Zou Huayao,Hao Fang,Zhang Boqiao,Chen Bin.HISTORY OF HYDROCARBON-FILLING AND REMIGRATING IN HINTERLAND OF THE JUNGGAR BASIN[J].Chinese Journal of Geology,2005,40(4):499-509. |
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| Authors: | Zou Huayao Hao Fang Zhang Boqiao Chen Bin |
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| Institution: | 1. Faculty of Natural Resources and Technology Information, University of Petroleum, Beijing 102249;2. Department of Petroleum, China University of Geosciences, Wuhan 430074 |
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| Abstract: | The Junggar Basin, as a typical superimposed one, experienced multiple phase tectonic activities from the Palaeozoic. The history of hydrocarbon-filling and migrating in the hinterland of the basin were reconstructed by hydrocarbon-generating modeling combined with reservoir geochemistry analyses. The study indicated that the hydrocarbon-filling process could be roughly divided into three episodes with varied maturity oil or/and gas which originated from different source layers. The early oil-filling occurred before Late Cretaceous and sourced from the Fengcheng Formation (the Lower Permian), the middle period of oil-filling was during Late Cretaceous and from the Xiawuerhe Formation (the Upper Permian), and the last period of gas-filling came about since the Paleogene and from the over-mature Fengcheng and Xiawuerhe Formations. A giant palaeohigh, called the Che-Mo Palaeohigh which created in the hinterland of the Junggar Basin during the Yanshanian orogeny (mainly in the end of Middle Jurassic), was tilted by the Himalayan tectonics. Simultaneously, a large amount of hydrocarbons (mostly oil) migrated again out of the tilting structure traps in the vicinity of the Che-Mo Palaeohigh, leaving behind some sporadically-distributed stratigraphic traps with partly-filled hydrocarbons. |
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| Keywords: | Hydrocarbon-filling Remigrating of oil-gas Accumulation history Hinterland of the Junggar Basin |
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