反假频时延Radon变换多次波压制方法研究
详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文
摘要
多次波压制是地震数据处理的重要环节之一,而Radon变换方法以其优势被广泛应用于多次波处理环节中.本文提出利用时间延迟量Γ代替传统抛物Radon变换的曲率参数q,对地震记录同相轴进行积分运算.当使用时延Radon变换时,输入数据的道数作为重要参数直接影响Radon变换域的假频,而非传统抛物Radon变换空间方向的采样间隔.使用预条件算子通过重建间接增加输入数据的道数,消除Radon域的假频问题,提高成像精度,进而更好的实现多次波压制.利用本文方法对水平层状介质和复杂模型数据进行试算,结果表明,Radon域假频得到有效抑制,多次波压制效果明显.
Multiple suppression is one of key steps in seismic data processing,Radon transform is popular and widely used in multiple suppression in seismic data pre-processing.The curvature parameter q is substituted by time-delay value Γduring the course of integral algorithm in the proposed approach in this paper.The artifacts in the time-delay Radon domain is decided by the trace number in the input CMP or shot records,but not the spatial interval along offset direction in the traditional Radon transform algorithm.To decrease the artifact,and also to improve the precision of imaging in the transform domain,the pre-condition operator is used in the proposed method,and then the better result is acquired for multiple suppression.The simple and complex forward modeling shot records are tested for multiple suppression using time-delay Radon transform,the results demonstrated that the proposed approach is anti-aliased,and the primary is preserved better after multiple suppressing.
引文
Binzhong Zhou.Stewart A.Greenhalgh.1994.Wave-equation extrapolation-based multiple suppression:2-D filtering in the f-k domain[J].Geophysics,59(9):1377-1391.
    Binzhong Zhou,Stewart A.Greenhalgh.1996.Multiple suppression by 2D filtering in the parabolicτ-pdomain:a waveequation-based method[J].Geophysical Prospecting,44:375-401.
    Charles I.Puryear,Oleg N.Portniaguine,Carlos M.Cobos,et al.2012.Constrained least-squares spectral analysis:Application to seismic data[J].Geophysics,77(5):143-167.
    Daniel Trad,Tadeusz Ulrych,Mauricio Sacchi.2003.Latest views of the sparse Radon transform[J],Geophysics,68(1):386-399.
    Douglas J.Foster,Charles C.Mosher.1992.Suppression of multiple reflections using the Radon transform[J].Geophysics,57(3):386-395.
    Einar Maeland.2003.Short Note Disruption of seismic images by the parabolic Radon transform[J].Geophysics,68(3):1060-1064.
    Ethan J.Nowak,Matthias G.Imhof.2006.Amplitude preservation of Radon-based multiple-removal filters[J].Geophysics,71(5):123-126.
    Feng X,Zhang X W,Liu C,et al.2011.Separating P-P and P-SV wave by parabolic Radon transform with multiple coherence.Chinese J.Geophys.,54(2):304-309.doi:10.3969/j.issn.0001-5733.2011.02.005.
    Greenhalgh S.A.,Mason I.M.,Lucas E,et al.1990.Controlled direct ion reception filtering of P-and S-waves inτ-pspace[J].Geophysical Journal International,100:221-234.
    Huang X W,Wu L,Niu B H,et al.2003.Sampling and aliasing of parameters in parabolic Radon transform[J].Journal of the University of Petroleum.China,27(2):27-31.
    Kabir M N,Verschuur D J.1995.Restoration of missing offsets by parabolic Radon transform[J].Geophysical Prospecting,43:347-368.
    Kurt J.Marfurt,Robert V.Schneider,Michael C.Mueller.1996.Pitfalls of using conventional and discrete Radon transforms on poorly sampled data[J].Geophysics,61(5):1467-1482.
    Li X,Hu T Y.2009.Surface-related multiple removal with inverse scattering series method[J].Chinese J.Geophys.,52(6):1633-1640.doi:10.3969/j.issn.0001-5733.2009.06.026.
    Li Z C,Li Z N,Guo S J,et al.2013.Comparison of multiple attenuation methods in data domain and image domain[J].Progress in Geophysics,28(6):2901-2910.doi:10.6038/pg20130610.
    Liu X W,Liu H,Li Y M.2004.High resolution radon transform and its application in seismic signal processing[J].Progress in Geophysics,19(1):8-15.
    Liu Y K,Zhu W L,Mi LJ,et al.2014.Characteristics of multiples in the slope of the northern South China Seaand the suppressing method[J].Chinese J.Geophys.,57(10):3354-3362.doi:10.6038/cjg20141022.
    Ma J T,Mrinal K.Sen,Chen X H.2009.Multiple attenuation using inverse data processing in the plane-wave domain[J].Chinese Journal Geophysics,52(3):808-816.
    Turner G.1990.Aliasing in theτ-p transform domain and the removal of spatial aliased coherent noise[J].Geophysics,55:1496-1503.
    Wang B L,M.D.Sacchi,Ying X Y,et al.2014.Multiple attenuation based on amplitude preserving Radon transform[J].Chinese J.Geophys.,57(6):1924-1933,doi:10.6038/cjg20140623.
    Wang Yanghua.2002.Antialiasing conditions in the delay-time Radon transform[J].Geophysical prospecting,50:665-672.
    Wang Yanghua.2003.Sparseness-constrained least-squares inversion:Application to seismic wave reconstruction[J].Geophysical prospecting,51.75-87.
    Wang Yanghua.2003.Multiple suppression:coping with the spatial truncation effect in the Radon transform domain[J].Geophysical prospecting,50:665-672.
    Schonewille M A,Duijndam A J W.2001.Parabolic Radon transform,sampling and efficiency[J],Geophysics,66(2):667-678.
    Song J W,D.J.Verschuur,Chen X H.2014.Research status and progress in multiple elimination[J].Progress in Geophysics.29(1):240-247,doi:10.6038/pg20140134.
    Wenkai Lu.2013.An accelerated sparse time-invariant Radon transform in the mixed frequency-time domain based on iterative2D model shrinkage[J].Geophysics,78(4):147-155.
    Xiong D,Zhao W,Zhang J F.2009.Hybrid-domain high-resolution parabolic Radon transform and its application to demultiple[J].Chinese J.Geophys.,52(4).1068-1077,doi:10.3969/j.issn.0001-5733.2009.04.024.
    Xue Y R,Chen X H,Ma J T.2012.Multiples attenuation based on directional orthogonal polynomial transform[J].Chinese J.Geophys.,55(10),3450-3458,doi:10.6038/j.issa 0001-5733.2012.10.028.
    Zhou Yu,John Ferguson,George McMechan,Phil Anno.2007.Wavelet-Radon domain dealiasing and interpolation of seismic data[J].Geophysics,72(2):41-49.
    Zhu S W,Wei X C,Li F,et al.2002.Separating and suppressing multiples by sparse solution of parabolic Radon transform[J].Oil Geophysical prospecting,37(2):110-115.
    薛亚茹,陈小宏,马继涛.2012.多方向正交多项式变换压制多次波[J].地球物理学报,55(10):3450-3458,doi:10.6038/j.issn.0001-5733.2012.10.028.
    冯晅,张先武,刘财,等.2011.带有多道相关的抛物线Radon变换法分离P-P、P-SV波[J].地球物理学报,54(2):304-309,doi:10.3969/j.issn.0001-5733.2011.02.005.
    马继涛,Mrinal K.Sen,陈小宏.2009.平面波域反数据处理压制多次波方法研究[J].地球物理学报,52(3):808-816.
    熊登,赵伟,张剑锋.2009.混合域高分辨率抛物Radon变换及在衰减多次波中的应用[J].地球物理学报,52(4):1068-107.doi:10.3969/j.issn.0001-5733.2009.04.024.
    李翔,胡天跃.2009.逆散射级数法去除自由表面多次波[J].地球物理学报,52(6):1633-1640,doi:10.3969/j.issn.0001-5733.2009.06.026.
    王保丽,M.D.Sacchi,印兴耀,等.2014.基于保幅拉东变换的多次波衰减[J].地球物理学报,57(6):1924-1933,doi:10.6038/cjg20140623.
    刘伊克,朱伟林,米立军,等.2014.南海北部陆坡区多次波发育特征及压制策略分析[J].地球物理学报,57(10):3354-3362,doi:10.6038/cjg20141022.
    刘喜武,刘洪,李幼铭.2004.高分辨率Radon变换方法及其在地震信号处理中的应用[J].地球物理学进展,19(1):8-15.
    宋家文,D.J.Verschuur,陈小宏.2014.多次波压制的研究现状与进展[J].地球物理学进展,29(1):240-247,doi:10.6038/pg20140134.
    李振春,李志娜,郭书娟,等.2013.数据域与成像域多次波压箭j方法对比[J].地球物理学进展,28(6):2901-2910,doi:10.6038/pg20130610.
    黄新武,吴律,牛滨华,等.2003.抛物线Radon变换中的参数采样与假频[J].石油大学学报,27(2):27-31.
    朱生旺.魏修成,李锋,等.2002.用抛物线Radon变换稀疏解分离和压制多次波[J].石油地球物理勘探,37(2):110-115.

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