噪音减去法压制线性干扰
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摘要
线性干扰是野外原始地震记录中一种常见的强能量干扰波。本文以实际地震资料处理工作为基础,采用F—K域滤波方法提取记录噪音初始模型,根据原始记录与噪音模型的差值结果对原始噪音模型进行加权处理,使合成噪音更加接近记录中的真实噪音,最终采用减去法,从记录中减去合成的噪音以达到滤波目的。叠前线性噪音的实际压制应用与分析表明,处理效果较为满意。
Linear interference is a common strong energy disturbing wave on the field original seismic record.In the paper,based on real seismic data processing,the noise initial model is abstracted and recorded by F—K filtering,which is weighting processed according to the difference of original record and noise model to make compound noise be true noise in the record.Subtraction method is applied to subtract compound noise form the record for filtering.Good processing results are achieved by the actual application and analysis of prestack linear noise.
Linear interference is a common strong energy disturbing wave on the field original seismic record.In the paper,based on real seismic data processing,the noise initial model is abstracted and recorded by F—K filtering,which is weighting processed according to the difference of original record and noise model to make compound noise be true noise in the record.Subtraction method is applied to subtract compound noise form the record for filtering.Good processing results are achieved by the actual application and analysis of prestack linear noise.
引文
[1]铁迎春,陈彩花,何和英等.叠前去噪方法及其应用.河南石油,2000,4
[2]晋为真,刘智煌,张小波.GRISYS处理系统中线性干扰去除方法研究.石油地球物理勘探,2008,43(1):93～100
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[5]闫立志,景新义,李刚.F—K滤波在噪音减去法中的作用.海洋地质动态,2006,22(10):28～32
[6]董恩清,刘贵忠,张宗平.自适应Kalman滤波纹褶积的快速实现方法.地球物理学报,2001,44
[7]许胜利,林正良,费永涛等.地震叠前线性干扰自动识别和压制技术.油气地质与采收率,2005,12(2):36～41
[2]晋为真,刘智煌,张小波.GRISYS处理系统中线性干扰去除方法研究.石油地球物理勘探,2008,43(1):93～100
[3]胡天跃.地震资料叠前去噪技术的现状与未来.地球物理学进展,2002,17(2):35～40
[4]谈大龙,张林松.常规地震资料处理.石油地球物理勘探,2003:11～28
[5]闫立志,景新义,李刚.F—K滤波在噪音减去法中的作用.海洋地质动态,2006,22(10):28～32
[6]董恩清,刘贵忠,张宗平.自适应Kalman滤波纹褶积的快速实现方法.地球物理学报,2001,44
[7]许胜利,林正良,费永涛等.地震叠前线性干扰自动识别和压制技术.油气地质与采收率,2005,12(2):36～41
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