| 东营凹陷中央隆起带构造特征、沙箱模拟与形成机制研究 |
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| 引用本文： | 云金表,赵利华.东营凹陷中央隆起带构造特征、沙箱模拟与形成机制研究[J].地质力学学报,2003,9(2):113-121. |
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| 作者姓名： | 云金表 赵利华 |
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| 作者单位： | 1. 石油大学盆地与油藏中心,教育部油气成藏重点实验室,北京,102249
2. 大庆石油学院,大庆,151400 |
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| 摘 要： | 东营凹陷中央隆起带是渤海盆地济阳坳陷东营凹陷中油气最富集的区域。该构造带走向近东西，为北陡南缓两翼不对称的隆起带，上部发育“塌陷式”地堑断裂系统。由于构造受北缘断层控制，具有同沉积与逆牵引(reverse drag)特点，故勘探早期将其认为滚动背斜。20世纪80年代以来，由于钻井揭露与地球物理勘探资料的增多，研究者普遍认为是盐泥底辟构造。本次工作，是在进行详细的地震、地质解释基础上，结合前人研究成果与假设，运用沙箱实验证实方法探讨了构造带成因。通过实验与地质、地球物理的综合研究认为，东营凹陷中央隆起构造带是区域张扭力与重力联合导致的伸展—底辟作用的产物；盐泥底辟物质的形态、底辟与伸展作用的强度控制了局部构造的形态与断裂构造的发育程度。
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| 关 键 词： | 东营凹陷中央隆起构造带 底辟 伸展 沙箱模拟实验 |
| 文章编号： | 1006-6616(2003)02-0113-09 |
| 收稿时间： | 2002/10/25 0:00:00 |
| 修稿时间： | 2002年10月25 |
RESEARCH ON MOLDING, STRUCTURAL FEATURE AND FORMATION MECHANISM OF THE CENTRAL UPLIFT BELT IN DONGYING DEPRESSION,JIYANG |
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| YUN Jin-biao and ZHAO Li-hua.RESEARCH ON MOLDING, STRUCTURAL FEATURE AND FORMATION MECHANISM OF THE CENTRAL UPLIFT BELT IN DONGYING DEPRESSION,JIYANG[J].Journal of Geomechanics,2003,9(2):113-121. |
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| Authors: | YUN Jin-biao and ZHAO Li-hua |
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| Institution: | Basin and reservoir research center, education ministry key laboratry for hydrocarbon accumulation mechanism ofpetroleum university of China, Beijing 102249 and Daqing petroleum institute, Daqing, heilongjiang province 151400, China |
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| Abstract: | The central uplift belt is an oil/gas enrichment zone in the Dongying depression of jiyang geotectogene.It trends nearly E-W and is a dissymmetrical anticline belt with steep dip angle in the north limb and gentle in the south.A rift-fault system of cabbage style develops on the uplift belt.Because of the characteristics of synsedimentary and reverse drag controlled by the north boundary fault.It was considered as a roll anticline belt in the early exploration time.Due to the accumulation of geological and geophysical data,most of the following investigators have argued the origin of salt-mud diapir structure since 80''s.Based on detailed studying of sesimic and geological data and comparing to previous research results,a sadbox experiment is designed and carried through in this work to search the cause of the central uplift belt.By all the results above,we conclude that the Dongying central uplift belt was formed by extention-diapirism lead by regional tenso-shear stress and gravity,and the shape of the local auticlines and the character of the fault system are controlled by the shape of the salt-mud diapir and the intensity of extension and diapirism. |
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| Keywords: | dongying depression center uplift structure belt diapir extension sand-box experiment |
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