| 鄂尔多斯盆地麻黄山西区块延长、延安组裂缝成因及期次 |
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| 引用本文： | 邓虎成,周文,姜文利,刘岩,梁峰. 鄂尔多斯盆地麻黄山西区块延长、延安组裂缝成因及期次[J]. 吉林大学学报(地球科学版), 2009, 39(5) |
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| 作者姓名： | 邓虎成 周文 姜文利 刘岩 梁峰 |
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| 作者单位： | 成都理工大学,能源学院,成都,610059;成都理工大学,能源学院,成都,610059;油气藏地质及开发工程国家重点实验室,成都,610059;国土资源部,油气资源战略研究中心,北京,100034;油气藏地质及开发工程国家重点实验室,成都,610059;中石化西北分公司,乌鲁木齐,830011 |
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| 基金项目： | 中国石油化工股份有限公司科技攻关重点项目 |
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| 摘 要： | 裂缝的形成是一个复杂过程,对其成因及期次研究需要通过多方面的资料进行综合分析加以确定.对鄂尔多斯盆地麻黄山西区块裂缝的研究首先选择了相似露头区进行裂缝的野外调查,野外裂缝特征表明:裂缝组系不稳定,受构造变形强度、形态所控制,且构造变形越强,裂缝的发育密度越大;确定了裂缝以构造成因为主.通过研究区23口取心井岩心裂缝观察描述,岩心上裂缝主要以垂直或者高角度斜交张性缝为主,且岩心上裂缝之间的切割、限制及组合关系表明了裂缝期次至少存在2期.最后在野外和岩心裂缝特征、成因及期次认识的基础上,进行了岩石声发射实验、裂缝充填物稳定碳氧同位素分析实验,并结合研究区构造演化背景确定了研究区裂缝形成期次主要有两期,可能分别对应研究区燕山运动二幕和三幕两个构造活动时期.
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| 关 键 词： | 鄂尔多斯盆地 麻黄山西区块 延长组 延安组 裂缝成因 裂缝形成期次 |
Genetic Mechanism and Development Periods of Fracture in Yanchang and Yan'an Formation of Western Mahuangshan Block in Ordos Basin |
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| DENG Hu-cheng,ZHOU Wen,JIANG Wen-li,LIU Yan,LIANG Feng. Genetic Mechanism and Development Periods of Fracture in Yanchang and Yan'an Formation of Western Mahuangshan Block in Ordos Basin[J]. Journal of Jilin Unviersity:Earth Science Edition, 2009, 39(5) |
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| Authors: | DENG Hu-cheng ZHOU Wen JIANG Wen-li LIU Yan LIANG Feng |
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| Affiliation: | DENG Hu-cheng1,ZHOU Wen1,2,JIANG Wen-li3,LIU Yan2,LIANG Feng41.College of Energy Resources,Chengdu University of Technology,Chengdu 610059,China2.State Key Laboratory of Oil , Gas Reservoir Geology , Exploitation,China3.Strategic Research Center of Oil & Gas Resources,Ministry of L, & Resources,Beijing 100034,China4.Northwest Company of SINOPEC,Urumqi 830011,China |
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| Abstract: | The formation of the fracture is a complex process,so it must through many data to comprehensively analysis and determine genetic mechanism and terms of the fracture.First,in order to research the fracture of western Mahuangshan block in Ordos basin,the field investigations aiming at the fracture of analogous outcrop zone were done,the results show that the fracture systems are unstable,and the fractures are controlled by the structural deformation intensity and shape,structural deformation is the stronger ... |
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| Keywords: | Ordos basin western Mahuangshan block Yanchang Formation Yan'an Formation genetic mechanism of fracture development stage of fracture |
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