| 高分辨率抛物线拉冬变换多次波压制技术 |
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| 引用本文： | 张振波,轩义华.高分辨率抛物线拉冬变换多次波压制技术[J].物探与化探,2014(5):981-988. |
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| 作者姓名： | 张振波 轩义华 |
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| 作者单位： | 中海石油深圳分公司,广东深圳518067 |
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| 基金项目： | “十二五”国家科技重大专项（2011ZX05023-003-002） |
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| 摘 要： | 对于孔径过小,采样不充分的地震数据,抛物线拉冬变换的多次波压制效果不理想,且存在空间假频问题。综合Sacchi、Mauricio、Todd Mojesky等对抛物线拉冬变换压制多次波的分析,阐明了高分辨率抛物线拉冬变换原理。通过理论模型试验和实际地震数据的分析证明,高分辨率抛物线拉冬变换可以突破离散采样和有限孔径的限制,实现对地震数据中的多次波及空间假频的快速、有效压制。
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| 关 键 词： | 抛物线拉冬变换 多次波压制 最小二乘规则化 空间假频 高分辨率 |
High resolution parabolic radon transform multiple wave suppression technique |
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| ZHANG Zhen-Bo,XUAN Yi-Hua.High resolution parabolic radon transform multiple wave suppression technique[J].Geophysical and Geochemical Exploration,2014(5):981-988. |
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| Authors: | ZHANG Zhen-Bo XUAN Yi-Hua |
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| Institution: | ( Shenzhen Branch, CNOOC Co., Ltd., Shenzhen 518067, China) |
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| Abstract: | Conventional parabolic radon transform method cannot attenuate the multiples ideally and causes spatial alias for the short spread and sparse sampling seismic data. After analyzing the papers by Sacchi, Mauricio, Todd Mojesky and some other researchers, on multiples attenuation by using parabolic radon transform method, this paper describes the theory of high resolution parabolic radon transform method. The result shows that the high resolution parabolic radon transform method can efficiently and effectively realize spa- tial anti-alias multiples suppression after the new method is applied to the model data and real seismic data respectively; meanwhile, this method can overcome the limitation of insufficient samples and short offset. |
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| Keywords: | parabolic radon transform multiple wave suppression least square regularization spatial aliening high resolution |
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