多次波压制技术适用性分析
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摘要
多次波衰减是地震资料处理中的一个难题。经过不懈研究,地球物理学家提出了多种压制多次波的方法。归纳起来主要有两种处理思路:①基于有效波与多次波的速度、频率、周期性存在差异的滤波法;②基于波动理论的预测减去法。介绍了基于两种思路的6种常用的多次波压制方法,探讨了方法的适用性。
Suppression of multiple waves attenuation is a difficult problem in seismic data processing. By hard working,geophysicists have developed many methods to treat multiple attenuation,and all the methods can be induced to two main thoughts for dealing with the multiple problems:1) The filter method based on the difference between the effective wave and multiple wave,such as velocity,frequency and cyclicity;2) Multiple prediction and subtraction method based on wave theory.Six kinds of multiple attenuation methods in common use are introduced and the applicability of those methods is also discussed in this paper.
Suppression of multiple waves attenuation is a difficult problem in seismic data processing. By hard working,geophysicists have developed many methods to treat multiple attenuation,and all the methods can be induced to two main thoughts for dealing with the multiple problems:1) The filter method based on the difference between the effective wave and multiple wave,such as velocity,frequency and cyclicity;2) Multiple prediction and subtraction method based on wave theory.Six kinds of multiple attenuation methods in common use are introduced and the applicability of those methods is also discussed in this paper.
引文
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[11]胡天跃,王润秋,温书亮.聚束滤波法消除海上地震资料的多次波[J].石油地球物理勘探,2002,37(1):18-23.
[12]洪菲,胡天跃,张文坡,等,用优化聚束滤波方法消除低信噪比地震资料中的多次波[J].地球物理学报,2004,47 (6):1 106-1 110.
[13]罗小明,牛滨华,于延庆,等.海上某区二维地震多次波的识别和压制[J].现代地质,2003,17(4):474-478.
[14]牛滨华,等.波动方程多次波压制技术的进展,地球物理学进展[J].2002,17(3):480-485.
[2]Verschuur D J,Berkhout A J.Estimation of multiple scattering by iterative inversion,Part 2:Practical aspects and examples[J].Geophysics,1997,62:1 596-1 611.
[3]Landa E,Belfer I,Keydar S.Multiple attenuation in the parabolicτ-p domain using wavefront characteristics of multiple generating primaries[J].Geophysics,1999,64:1 806- 1 815.
[4]Tathan R H,Keeney J K,Noponen.Application of the Tautransform (slant stack)in processing seismic reflection data [C]//Dallas:52nd SEG Meeting,1982.
[5]Foster D J,Mosher C C.Suppression of multiple reflectors using the Radon transform[J].Geophysics,1992,57:386- 395.
[6]Weglein A B.Multiple attenuation:an overview of recent advances and the road ahead[J].The Leading Edge,1999, 18(1):40-44.
[7]White R E.A multichannel method of multiple attenuation based on hyperbolic moveout curves[C]//The Hague:50th EAEG Meeting,1988:1-22.
[8]刘喜武,刘洪,李幼铭.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,2004,19(1): 8-15.
[9]曹景忠,等.Tau-p变换及初步应用[J].石油地球物理勘探, 1985,20(4).
[10]胡天跃,王润秋,White R.地震资料处理中的聚束滤波方法[J].地球物理学报,2000,43(1):105-115.
[11]胡天跃,王润秋,温书亮.聚束滤波法消除海上地震资料的多次波[J].石油地球物理勘探,2002,37(1):18-23.
[12]洪菲,胡天跃,张文坡,等,用优化聚束滤波方法消除低信噪比地震资料中的多次波[J].地球物理学报,2004,47 (6):1 106-1 110.
[13]罗小明,牛滨华,于延庆,等.海上某区二维地震多次波的识别和压制[J].现代地质,2003,17(4):474-478.
[14]牛滨华,等.波动方程多次波压制技术的进展,地球物理学进展[J].2002,17(3):480-485.
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