| 基于互四阶累积量一维切片的地震层位自动拾取方法 |
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| 引用本文： | 冯智慧,刘财,冯晅,王典,王兆国.基于互四阶累积量一维切片的地震层位自动拾取方法[J].石油地球物理勘探,2011(1):58-63,164,170. |
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| 作者姓名： | 冯智慧 刘财 冯晅 王典 王兆国 |
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| 作者单位： | 吉林大学地球探测科学与技术学院; |
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| 摘 要： | 为了解决强相干高斯色噪声干扰下地震层位无法正确拾取的问题,文中提出了一种基于互四阶累积量一维切片的地震层位自动拾取方法,阐述了该方法的基本原理和具体算法。该方法利用地震层位上横向波形的相似性以及互四阶累积量一维切片对高斯噪声不敏感的特点,实现了同相轴的时间延迟估计;同时对直接影响地震层位拾取精度的相关参数进行了设定。理论模型计算表明,该方法对相干高斯色噪声有很强的抑制能力,信噪比达到-10dB。实际资料应用结果与原始数据的地质层位吻合较好,断层、断点位置准确,其拾取精度不亚于人工方法的精度,而效率远远高于人工方法。
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| 关 键 词： | 互四阶累积量 一维对角切片 层位自动拾取 信噪比 相干高斯色噪声 |
An automatic seismic horizon picking-up method based on one dimensional slice of cross fourth order cumulant |
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| Feng Zhi-hui,Liu Cai,Feng Xuan,Wang Dian , Wang Zhao-guo.College of Geoexploration Science , Technology,Jilin University,Changchun City,Jilin Province,China.An automatic seismic horizon picking-up method based on one dimensional slice of cross fourth order cumulant[J].Oil Geophysical Prospecting,2011(1):58-63,164,170. |
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| Authors: | Feng Zhi-hui Liu Cai Feng Xuan Wang Dian Wang Zhao-guoCollege of Geoexploration Science Technology Jilin University Changchun City Jilin Province China |
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| Affiliation: | Feng Zhi-hui1,Liu Cai1,Feng Xuan1,Wang Dian1 and Wang Zhao-guo11.College of Geoexploration Science and Technology,Jilin University,Changchun City,Jilin Province,130026,China |
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| Abstract: | In order to solve the problem in which the seismic horizon can not correctly picked up under the strong coherent Gaussian colored noise,an automatic seismic horizon picking-up method based on one dimensional slice of cross fourth order cumulant was proposed in this paper.The basic principle and exact algorithm of the method were also elaborated in this paper.The similarity of the seismic horizon over the horizontal direction and the insensitivity of the cross fourth order cumulant to Gaussian colored noise ... |
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| Keywords: | cross fourth order cumulant one dimensional diagonal slice automatic horizon picking-up signal to noise ratio coherent Gaussian colored noise |
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