| 龙门山中段前山带构造特征及含油气性研究 |
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| 引用本文： | 李坤,赵锡奎,王国芝,邓广军,吕志洲. 龙门山中段前山带构造特征及含油气性研究[J]. 地质找矿论丛, 2006, 21(4): 282-287 |
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| 作者姓名： | 李坤 赵锡奎 王国芝 邓广军 吕志洲 |
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| 作者单位： | 成都理工大学,油气藏地质及开发工程国家重点实验室,成都,610059;成都理工大学,油气藏地质及开发工程国家重点实验室,成都,610059;成都理工大学,油气藏地质及开发工程国家重点实验室,成都,610059;成都理工大学,油气藏地质及开发工程国家重点实验室,成都,610059;成都理工大学,油气藏地质及开发工程国家重点实验室,成都,610059 |
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| 摘 要： | 文章讨论了龙门山中段前山带的横向构造特征和纵向构造变形层次,并从构造演化角度重点分析了大圆包隐伏构造的油气赋存条件.研究表明,本区构造变形始于印支期,止于喜马拉雅晚期,主要发育浅层次脆性变形的推覆构造、以彭灌飞来峰群为代表的滑覆构造以及滑脱构造.大圆包构造为推覆体之下的隐伏构造圈闭,印支期-燕山早期隆起带上的正向古构造圈闭是早期油气聚集的关键,晚期构造裂缝改善了超致密砂岩的储集条件,生储盖组合良好,具有较好的油气勘探前景.
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| 关 键 词： | 龙门山中段 构造特征 隐伏构造 油气 |
| 文章编号： | 1001-1412(2006)04-0282-06 |
| 收稿时间： | 2005-05-18 |
| 修稿时间： | 2005-05-18 |
STUDY ON STRUCTURAL FEATURES AND PRESENCE OF OIL IN THE FORE-MOUNTAIN BELT OF THE MIDDLE LONGMEN MOUNTAINS |
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| LI Kun,ZHAO Xikui,WANG Guozhi,DENG Guangjun and L,Uuml; Zhizhou. STUDY ON STRUCTURAL FEATURES AND PRESENCE OF OIL IN THE FORE-MOUNTAIN BELT OF THE MIDDLE LONGMEN MOUNTAINS[J]. Contributions to Geology and Mineral Resources Research, 2006, 21(4): 282-287 |
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| Authors: | LI Kun,ZHAO Xikui,WANG Guozhi,DENG Guangjun LÜ Zhizhou |
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| Affiliation: | Chengdu University of Technology, Chengdu 610059, China;Chengdu University of Technology, Chengdu 610059, China;Chengdu University of Technology, Chengdu 610059, China;Chengdu University of Technology, Chengdu 610059, China;Chengdu University of Technology, Chengdu 610059, China |
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| Abstract: | This paper discussed the horizontal structural feature and vertical tectonic arrangement in the fore-mountain belt of the middle Longmen mountains,and analysed the investitive condition of oil and gas in the Dayuanbao concealed structure from structural evolution.The structural distortion started in Indosinian and ended in the afternoon of Himalayan.There are thrust nappe,gliding nappe showed by Peng-guan klippes and detachment nappe in this section.Dayuanbao structure is a concealed structure trap under the thrust.The key of early collection is the paleo-synform structure trap forming on Indosinlan-Himalayan the uplift belt.Terminal tectonic crack improved the oil collection and accumulation condition of the hypercompact sandstone.The source-reservior-cap assemblage is good.In a word,Dayuanbao struture has preferable prospect of oil & gas exploration. |
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| Keywords: | the middle segment of Longmen mountains tectonic characteristics lie concealed structure oil & gas |
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