混合Radon变换地震噪声压制的应用
|
摘要
如何有效地从地震资料中剔除相干噪声一直是地震勘探十分关心的问题,尤其是多次波的压制和消除。笔者采用相似函数压制端点效应和截断效应的混合Radon变换从地震剖面中一次性分离面波等线性噪声,再应用自适应滤波技术在Radon域识别并剔除多次波,并使用双曲Radon反变换计算获得有效反射地震信号。理论模型及实测资料试算结果表明,该方法对多次波压制效果良好,同时,应用混合Radon变换可简化数据中噪声压制处理流程。
The effective removal of coherent noise from seismic data has become a problem of much concern.The authors used hybrid radon transform to separate linear noise from seismic section once for all,then eliminated multiple wave in radon domain using adaptive filtering technology and used the inverse hyperbolic radon transform to get the effective reflection seismic signal.Theoretical model and practical data test show that this technology is effective in multiple wave attenuation.Similar function was used to suppress the end effect and truncation effect.The actual calculation results is good and shows that hybrid radon transform can simplify noise suppressing of data processing.
The effective removal of coherent noise from seismic data has become a problem of much concern.The authors used hybrid radon transform to separate linear noise from seismic section once for all,then eliminated multiple wave in radon domain using adaptive filtering technology and used the inverse hyperbolic radon transform to get the effective reflection seismic signal.Theoretical model and practical data test show that this technology is effective in multiple wave attenuation.Similar function was used to suppress the end effect and truncation effect.The actual calculation results is good and shows that hybrid radon transform can simplify noise suppressing of data processing.
引文
[1]Claerbout J F,Johnson A G.Extrapolation of time-dependent wave-forms along their path of propagation[J].Geophysical Journal In-ternational,1971,26(1):285-293.
[2]Hampson D.The discrete radon transform:A new tool for image en-hancement and noise suppression[C]//Louisiana,SEG AnnualMeeting,1987.
[3]Trad D O,Ulrych T J.Latest views of the sparse Radon transform[J].Geophysics,2003,68(1):386-399.
[4]巩向博.高精度Radon变换及其应用研究[D].长春:吉林大学,2007
[5]Trad D O,Ulrych T J.Accurate interpolation with high-resolutiontime-variant Radon transforms[J].Geophysics,2002,67(2):644-656.
[6]Cristina M C.Coherent noise attenuation using Radon techniques[M].University of Alberta,Master of Science,2006.
[7]陈见伟.用高分辨率双曲线Radon变换实现波场分离[D].西安:长安大学,2005
[8]Dirrani T S,Bisset D.The radon transform and its properties[J].Geophysics,1984,49(8):1180-1187.
[9]Mark N,Mile P.High Resolution Radon Transform in the T-X Do-main[C]//2004 CSEG National Convention.
[10]王维红,刘洪.抛物Radon变换法近偏移距波场外推[J].地球物理学进展,2005,20(2):289-293.
[11]熊登,赵伟,张剑锋.混合域高分辨率抛物Radon变换及在衰减多次波中的应用[J].地球物理学进展,2009,52(4):1068-1077.
[12]石颖,柯璇,王维红.一种加权抛物Radon变换地震波场重建方法[J].物探与化探,2012,36(5):846-850.
[2]Hampson D.The discrete radon transform:A new tool for image en-hancement and noise suppression[C]//Louisiana,SEG AnnualMeeting,1987.
[3]Trad D O,Ulrych T J.Latest views of the sparse Radon transform[J].Geophysics,2003,68(1):386-399.
[4]巩向博.高精度Radon变换及其应用研究[D].长春:吉林大学,2007
[5]Trad D O,Ulrych T J.Accurate interpolation with high-resolutiontime-variant Radon transforms[J].Geophysics,2002,67(2):644-656.
[6]Cristina M C.Coherent noise attenuation using Radon techniques[M].University of Alberta,Master of Science,2006.
[7]陈见伟.用高分辨率双曲线Radon变换实现波场分离[D].西安:长安大学,2005
[8]Dirrani T S,Bisset D.The radon transform and its properties[J].Geophysics,1984,49(8):1180-1187.
[9]Mark N,Mile P.High Resolution Radon Transform in the T-X Do-main[C]//2004 CSEG National Convention.
[10]王维红,刘洪.抛物Radon变换法近偏移距波场外推[J].地球物理学进展,2005,20(2):289-293.
[11]熊登,赵伟,张剑锋.混合域高分辨率抛物Radon变换及在衰减多次波中的应用[J].地球物理学进展,2009,52(4):1068-1077.
[12]石颖,柯璇,王维红.一种加权抛物Radon变换地震波场重建方法[J].物探与化探,2012,36(5):846-850.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心