| 济阳坳陷孤西负反转断层形成演化定量研究及其油气地质意义 |
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| 引用本文： | 雷超,任建业,吴梅莲,祁鹏,胡德胜.济阳坳陷孤西负反转断层形成演化定量研究及其油气地质意义[J].大地构造与成矿学,2008,32(4). |
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| 作者姓名： | 雷超 任建业 吴梅莲 祁鹏 胡德胜 |
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| 作者单位： | 1. 中国地质大学资源学院,湖北,武汉,430074
2. 塔里木油田勘探开发研究院,新疆,库尔勒841000 |
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| 基金项目： | 国家自然科学基金项目
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中国地质大学研究生学术探索与创新基金
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教育部构造与油气资源重点实验室及教育部含油气盆地构造研究中心联合资助
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| 摘 要： | 以高精度三维地震资料和钻井资料为基础,对研究区断裂构造进行精细解释,确定孤西断层为"薄底型"的、且表现为北段缓而南段陡、并向西倾的负反转构造;通过回剥技术和平衡剖面等定量分析技术对垂直穿越孤西断层的典型地震剖面研究揭示,孤西断层在J3-K1时期断层性质发生改变,由逆断层反转变为正断层,且在印支、J3-K1和Ek-Es4时期剖面拉伸率分别为-4%,17.2%和18.5%;沿孤西断层走向方向不同位置计算其断层活动速率表明该断层整体经历了负反转运动。以上述分析为基础,论文从烃源岩、圈闭、储集岩和油气运移角度,探讨了孤西负反转断层在孤岛潜山油气成藏方面的重要意义。
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| 关 键 词： | 济阳凹陷 孤西断层 负反转断层 平衡剖面 潜山油气藏 |
THE QUANTIFICATIONAL ANALYSIS OF DEVELOPMENT AND EVOLVEMENT OF GUXI NEGATIVE INVERSION FAULT AND ITS SIGNIFICANCE IN PETROLEUM GEOLOGY IN JIYANG DEPRESSION |
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| LEI Chao,REN Jianye,WU Meilian,QI Peng,HU Desheng.THE QUANTIFICATIONAL ANALYSIS OF DEVELOPMENT AND EVOLVEMENT OF GUXI NEGATIVE INVERSION FAULT AND ITS SIGNIFICANCE IN PETROLEUM GEOLOGY IN JIYANG DEPRESSION[J].Geotectonica et Metallogenia,2008,32(4). |
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| Authors: | LEI Chao REN Jianye WU Meilian QI Peng HU Desheng |
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| Institution: | LEI Chao1,REN Jianye1,WU Meilian2,QI Peng1 and HU Desheng1 |
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| Abstract: | Based on the high resolution 3D seismic and well drilling data,the thin-bottom type of Guxi negative inversion fault is distinguished by analysis and interpretation of geological structures in study area,and the differences between northern and southern segment of the fault are recognized,and the dip angle of geometric northern segment is gentler than the one of the southern segment.By the method of balanced section,a geological section across the Guxi Fault was analyzed in details.The results indicate that properties of Guxi Fault are changed from reverse fault to normal fault during the period of J3-K1.Backstripping and balanced sections show the stretch ratio of Indosinian periods,J3-K1 and Ek-Es4 are-4%,17.2% and 18.5%,respectively;Along different locations of northern section of Guxi fault,fault activity rates reveal the fault wholly experienced inversion.Moreover,the relationship between Guxi negative inversion fault and its significance of hydrocarbon accumulation in Gudao buried hill are discussed including source rocks,traps,reservoir,and migration of oil and gas. |
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| Keywords: | Jiyang depression Guxi fault negative inversion fault balanced section buried hill reservoir |
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