| 南海西部深水区二维叠前地震成像方法应用研究 |
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| 引用本文： | 李林,黄安敏,李添才,杨平华,李三福,陈剑锋. 南海西部深水区二维叠前地震成像方法应用研究[J]. 中国海上油气, 2011, 23(5) |
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| 作者姓名： | 李林 黄安敏 李添才 杨平华 李三福 陈剑锋 |
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| 作者单位： | 1. 中海石油(中国)有限公司湛江分公司研究院
2. 中海油能源发展采技服公司钻采院地球物理研究所 |
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| 摘 要： | 南海西部深水区以二维地震资料为主,受水深变化大、海底崎岖以及地层速度异常等因素的影响,深水区时间域构造不能代表正确的地下构造形态,而常规的时深转换方法解决不了该地区构造畸变的问题.在分析南海西部深水区地层速度变化规律及其与水深关系的基础上,结合正演模拟分析,针对性地应用速度趋势法建模,消除了常规速度建模方法导致的构造畸变,改善了断层和中深层的二维叠前地震成像效果.
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| 关 键 词： | 南海西部 深水区 二维叠前深度偏移 速度趋势法 地震成像 |
An application of 2D seismic prestack imaging in deepwater areas of the western South China Sea |
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| Li Lin,Huang Anmin,Li Tiancai,Yang Pinghua,Li Sanfu,Chen Jianfeng. An application of 2D seismic prestack imaging in deepwater areas of the western South China Sea[J]. China Offshore Oil and Gas, 2011, 23(5) |
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| Authors: | Li Lin Huang Anmin Li Tiancai Yang Pinghua Li Sanfu Chen Jianfeng |
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| Affiliation: | Li Lin1 Huang Anmin1 Li Tiancai2 Yang Pinghua2 Li Sanfu2 Chen Jianfeng2 (1.Research Institute,Zhanjiang Branch of CNOOC Ltd.,Guangdong,524057,2.Geophysics Unit,Drilling and Production Institute,CNOOC Technology Services of Energy Development & Oilfield,524057) |
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| Abstract: | Most seismic data available in deepwater areas of the western South China Sea are 2D data,and their time structures can not represent the true geological structures,due to great changes in water depth,rough seabed and anomalous interval velocity there.Furthermore,this problem of structure distortion can not be solved by any method of conventional time-to-depth conversion.Based on analyzing the relationship between interval velocity and water depth in these areas and in combination with forward modeling,a tr... |
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| Keywords: | the western South China Sea deepwater area prestack depth migration trend velocity method seismic imaging |
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