| 祁连山北缘深部弧形褶皱—逆冲带及其油气勘探前景 |
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| 引用本文： | 杜文博,张进江,肖毓祥,张波,李晓军,侯秀林,王盟,李景,程光瑾.祁连山北缘深部弧形褶皱—逆冲带及其油气勘探前景[J].地质科学,2016,0(4):1059-1073. |
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| 作者姓名： | 杜文博 张进江 肖毓祥 张波 李晓军 侯秀林 王盟 李景 程光瑾 |
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| 作者单位： | 1.中国石油玉门油田分公司勘探开发研究院 甘肃酒泉 735019； 2.北京大学地球与空间科学学院 北京 100871； 3.中国石油勘探开发研究院 北京 100083 |
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| 摘 要： | 祁连山北缘-河西走廊西段位于青藏高原东北缘，是新生代陆内构造活动最强烈地区。基于野外构造观测、横跨山前及前陆盆地区的三维地震构造分析与解释，结合地震地质属性提取分析，识别出祁连山北缘-酒泉盆地西段窟窿山-柳沟庄带隐伏的弧形褶皱-逆冲带，该弧形构造是造山带基底逆冲构造楔体垂向差异抬升与向前陆方向差异运动的产物；该弧形结构控制本区下白垩统地层裂缝发育、分布与破裂强度，并与本区先期断裂、裂缝带产生构造叠加效应，形成弧形构造“中央强裂缝发育带”，是形成构造裂缝型油气藏的有利区域。
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| 关 键 词： | 弧形构造 褶皱—逆冲带 基底变形 裂缝油藏 北祁连山 酒泉盆地 窟窿山—柳沟庄带 |
| 收稿时间： | 2015-06-20 |
| 修稿时间： | 2015-06-20; |
Arcuate fold-thrust belts and its oil gas exploration prospect in the northern Qilianshan |
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| Du Wenbo,Zhang Jinjiang,Xiao Yuxiang,Zhang Bo,Li Xiaojun,Hou Xiuliu,Wang Meng,Li Jing,Cheng Guangjin.Arcuate fold-thrust belts and its oil gas exploration prospect in the northern Qilianshan[J].Chinese Journal of Geology,2016,0(4):1059-1073. |
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| Authors: | Du Wenbo Zhang Jinjiang Xiao Yuxiang Zhang Bo Li Xiaojun Hou Xiuliu Wang Meng Li Jing Cheng Guangjin |
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| Institution: | 1.Exploration & Production Research Institute，Yumen Oilfield of CNPC，Jiuquan，Gansu 735019； 2.The Key Laboratory of Orogenic Belts and Crustal Evolution，School of Earth and Space Sciences，Peking University， Beijing 100871；3.Exploration & Production Research Institute，CNPC，Beijing 100083 |
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| Abstract: | The northern Qilianshan thrust belt in the southern Hexi Corridor Basins is an important boundary in the northeastern Tibetan Plateau. The belt plays a key role in the Cenozoic intracontinent deformation. Based on the field structural surveys， seismic profile interpretations and attributes of seismic data， the blind arcuate fold-thrust belts are identified under the thrust nappe in the Kulongshan-Liugouzhuang belt in the western segment of the Jiuquan Basin. Our observations demonstrate that the curved trend lines are indenter-controlled salients. The salient geometry resulted from vertical variations in basement uplifting and differential movements to foreland direction. Specifically， fracture development and distribution are response to the structural trend lines in the indenter-controlled salients. The central zone in the curved fold-thrust belt is characterized by high fractures and micro-fault networks， which is favorable area to develop fractured reservoirs. |
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| Keywords: | Arcuate structure Fold-thrust belt Base-related deformation Fractured reservoir Northern Qilianshan Jiuquan Basin Kuloushan-liugouzhuang belt |
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