一次波和多次波联合成像在障碍观测系统中应用
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摘要
在地震资料采集过程中,不可避免地会遇到一些障碍区域,如某段区域由于地形特殊性无法放炮而只能放置接收器,在这种特殊观测系统下,若依然只利用一次波作为有效波,可能会出现地下结构成像信息不足。而如果此区域有比较发育的多次波,尝试将多次波和一次波同时作为有效信息用于波场逆向延拓,在震源记录中同时加入一次波和多次波成像所需的震源信息用于正向延拓,并引用2D反褶积成像条件,从而实现多次波和一次波联合成像,获取比常规一次波成像更加丰富的成像信息。模型数据和实际资料测试结果表明,此方法技术可以实现对障碍观测区域成像信息的补充,说明多次波信息在一些障碍观测区域应用的有效性。
Primaries are usually regarded as the only seismic signals used for seismic imaging. However,when seismic acquisition encounters some obstacle areas where no shooting can be made and only the installation of receivers can be conducted,there are seismic imaging gaps because of missing seismic primaries. Given the developed multiples in obstacle area,the authors proposed a method achieving joint imaging by using primaries and multiples. The method employs sum of impulsive source and recorded primaries and multiples as source wavefield and the wavefield consisting of recorded primaries and multiples as back-extrapolated wavefield under the 2D deconvolution imaging condition. Tests on Sigsbee2 B dataset and field data show that the method could provide more valuable imaging information and complement the lack of seismic primary imaging caused by obstacle topography. Tests on Sigsbee2 B dataset and field data show that the method is workable and effective.
引文
[1]Verschuur D J,Berkhout A J,Wapenaar C P A.Adaptive surfacerelated multiple elimination[J].Geophysics,1992,57(9):1166-1177.
    [2]Berkhout A J,Verschuur D J.Estimation of multiple scattering by iterative inversion,Part 1 Theoretical considerations[J].Geophysics,1997,62(5):1586-1595.
    [3]Weglein A B,Gasparotto F A,Carvalho P M,et al.An inversescattering series method for attenuating multiples in seismic reflection data[J].Geophysics,1997,62(6):1975-1989.
    [4]Guo Man H,Kim Y,Sen S,et al.A new multiple subtraction method using the attributes of predicted multiples[C]//Denver:80th Annual International Meeting,SEG,Expanded Abstracts,2010:2451-2455.
    [5]Fomel S.Adaptive multiple subtraction using regularized nonstationary regression[J].Geophysics,2009,74(1):V25-V33.
    [6]张兴岩,朱江梅,杨薇,等.海洋资料多次波组合衰减技术及应用[J].物探与化探,2011,35(4):511-515.
    [7]史文英,李列,袁全社,等.串联SRME在涠西南地区多次波衰减中的应用[J].物探与化探,2013,37(5):911-915.
    [8]鲁娥,李庆春.混合Radon变换地震噪声压制的应用[J].物探与化探,2013,37(4):706-710.
    [9]田继强,胡天跃.反馈迭代法在自由表面多次波压制中的应用[J].石油物探,2008,47(5):449-454.
    [10]李钟晓,陆文凯,庞廷华,等.基于多道卷积信号盲分离的多次波自适应相减方法[J].地球物理学报,2012,55(4):1325-1334.
    [11]董烈乾,李振春,杨少春,等.基于相关迭代的非因果匹配滤波器多次波压制方法[J].地球物理学报,2013,56(10):3542-3551.
    [12]Reiter E C,Toksoz M N,Keho T H,et al.Imaging with deep-water multiples[J].Geophysics,1991,56(7):1081-1086.
    [13]Guitton A.Shot-profile migration of multiple reflections[C]//72th Ann Internat Mtg,Soc Expl Geophys Expanded Abstracts,2002:1296-1299.
    [14]Muijs R,Robertsson J O A,Holliger K.Prestack depth migration of primary and surface-related multiple reflections:Part I—Imaging[J].Geophysics,2007,72(2):S59-S69
    [15]Muijs R,Robertsson J O A,Holliger K.Prestack depth migration of primary and surface-related multiple reflections:Part II—Identification and removal of residual multiples[J].Geophysics,2007,72(2):S71-S76.
    [16]Shan G.Source-receiver migration of multiple reflections[C]//Dallas:73thAnn.Internat.Mtg.,Soc.Expl.Geophys.,Expanded Abstracts,2003:1008-1011.
    [17]郭书娟,李振春,仝兆岐,等.表层多次波成像方法技术研究[J].地球物理学进展,2012,27(5):2570-2576.
    [18]Curry W,Shan G.Interpolation of near offsets using multiples and prediction-error filters[J].Geophysics,2010,75(6):WB153-WB164.
    [19]Wang Y,Luo Y,Schuster G T.Interferometric interpolation of missing seismic data[J].Geophysics,2009,74(3):SI37-SI45.
    [20]郭书娟,方伍宝,徐兆涛.基于表层多次波的地震数据插值方法研究[J].石油物探,2013,52(6):76-82.
    [21]Valenciano A,Biondi B.2D deconvolution imaging condition for shot profile migration[C]//Dallas:73thAnnual International Meeting,SEG,Expanded Abstracts,2003:1059-1062.
    [22]郭书娟,李振春,仝兆岐,等.基于广义的炮偏移方法实现地表多次波和一次波联合成像[J].地球物理学报,2011,54(4):1098-1105.
    [23]Zhang D L,Schuster G T.Least-squares reverse time migration of multiples[J].Geophysics,2012,79(1):S11-S21.
    [24]Berkhout A J,Verschuur D J.Full wave field migration,utilizing surface and internal multiple scattering[C]//San Antonio:1thAnnual International Meeting,Soc Expl Geophys,Expanded Abstracts,2011:212-3216.
    [25]Berkhout A J.Combining full wavefield migration and full waveform inversion,a glance into the future of seismic imaging[J].Geophysics,2012,77(2):S43-S50.

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