| 内蒙古查干凹陷火山岩油藏成藏模式 |
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| 引用本文： | 陈昭年,陈晓巍,王明艳,毛兴华.内蒙古查干凹陷火山岩油藏成藏模式[J].现代地质,2008,22(4). |
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| 作者姓名： | 陈昭年 陈晓巍 王明艳 毛兴华 |
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| 作者单位： | 1. 中国地质大学,能源学院,北京,100083
2. 中国石化,中原油田分公司,河南,濮阳,457001 |
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| 摘 要： | 火山岩油藏是查干凹陷进行油气勘探的现实目标。建立火山岩油藏成藏模式,对预测火山岩油气藏的分布和目标选择具有重要的现实意义。查干凹陷火山岩油藏的主力烃源岩为下白垩统巴音戈壁组二段;储集空间是原生孔隙和原生裂缝,局部为由于后期溶蚀作用产生的溶蚀孔隙和构造作用形成的构造裂缝;苏红图二段的棕红色泥岩是主力盖层。根据查干凹陷火山岩油气成藏条件及其控制因素的研究,总结出查干凹陷火山岩油藏具有2种成藏模式,即岩性成藏模式和构造-岩性成藏模式,其中构造-岩性成藏模式是主要的成藏类型。
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| 关 键 词： | 火山岩油藏 成藏条件 成藏模式 查干凹陷 |
Volcanic Reservoir-forming Patterns of the Chagan Sag in Inner Mongolia |
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| CHEN Zhao-nian,CHEN Xiao-wei,WANG Ming-yan,MAO Xing-hua.Volcanic Reservoir-forming Patterns of the Chagan Sag in Inner Mongolia[J].Geoscience——Journal of Graduate School,China University of Geosciences,2008,22(4). |
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| Authors: | CHEN Zhao-nian CHEN Xiao-wei WANG Ming-yan MAO Xing-hua |
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| Abstract: | Volcanic reservoir is the exploration target in the Chagan sag.Establishing the volcanic reservoir-formating patterns is significant for choosing target and forecasting the distribution of volcanic reservoir.The major source rocks in the Chagan sag are composed of the second member of the Bayingebi Formation of Lower Cretaceous.There are many types of pore spaces in the volcanic rocks,including primary pores,primary fracture,structural fractures and dissolution pores brought out by later denudation and tectonism locally.The red mudstone in the second member of the Suhongtu Formation is the main cap rock,with the lithologic trap and the structural-lithologic composite trap which are made up of volcanic reservoirs existing.Studying the reservoir-forming conditions and controlling factors,we proposed two patterns of volcanic reservoir-forming: the lithologic reservoir-forming pattern and the structural lithologic reservoir-forming pattern.The latter is the main type of structural lithologic reservoir-forming pattern. |
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| Keywords: | volcanic reservoir formation condition reservoir-forming pattern Chagan sag |
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