| 叠前时空域线性干扰的衰减及应用 |
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| 引用本文： | 甘其刚,彭大钧.叠前时空域线性干扰的衰减及应用[J].石油物探,2004,43(2):123-125,129. |
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| 作者姓名： | 甘其刚 彭大钧 |
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| 作者单位： | 1. 成都理工大学,四川成都,610059;中国石化西南分公司第二物探大队,四川德阳,618000
2. 成都理工大学,四川成都,610059 |
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| 摘 要： | 针对叠前地震数据中的线性干扰噪声，首先分析和识别出各组线性干扰波的频带范围及视速度范围，并通过分频处理从地震记录中自动分离出线性干扰所在频带范围的信号分量，然后采用线性干扰视速度扫描和空间域噪音剔除法迭代求解线性相干噪声，从原始记录中将其剔除或减掉，线性干扰频带范围之外的地震信号不会有任何改变。合成数据和实际地震数据处理结果表明，该方法适合于叠前2D/3D地震记录中各种线性相干噪声的处理，对地震信号具有良好的振幅保真性。
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| 关 键 词： | 地震数据 线性干扰波 地震记录 地震勘探 地震信号 |
| 文章编号： | 1000-1441(2004)02-0123-03 |
| 收稿时间： | 2003-4-17 |
| 修稿时间： | 2003-7-7 |
Elimination of linear interference in time-space domain and its application |
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| Gan Qigang,Peng Dajun.Elimination of linear interference in time-space domain and its application[J].Geophysical Prospecting For Petroleum,2004,43(2):123-125,129. |
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| Authors: | Gan Qigang Peng Dajun |
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| Affiliation: | Gan Qigang and Peng Dajun. Gan Qigang,Chengdu University of Technology,Chengdu 610059,China |
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| Abstract: | This paper introduces a method applicable for elimination of linear interference waves in prestack seismic data. Firstly, the frequency bands and apparent velocities of linear interference waves are identified. Then in different frequency range, the linear interference waves are singled out by apparent velocity scanning and time-domain noise elimination, and are removed from seismic data. The feasibility of the method is tested on synthetic and real data. The tests show that the amplitudes of the resulted seismic data are preserved well. |
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| Keywords: | linear interference frequency-division processing time-space domain prediction and elimination S/N |
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