三维声波全波形反演的实现与验证
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摘要
全波形反演利用叠前地震波场的运动学和动力学信息重建地下地球物理参数,具有揭示复杂地质背景下构造细节及岩性的潜在能力。介绍了频率域反演联合时间域正演的优化算法的三维声波全波形反演方法及算法实现。该算法的正演实现使用了伪保守形式的一阶速度-压力场声波方程。应用三维SEG/EAGE模型反演实例验证了三维声波全波形反演方法的有效性。
The full waveform inversion(FWI) method makes use of the kinematic and dynamic information of pre-stack seismic data to rebuild underground geophysical parameters.Due to its high resolution,it has the potential of revealing structure details and lithology characteristic under complex geological background.We present some methodological and algorithmic developments of 3D acoustic full waveform inversion by frequency-domain inversion combined with time-domain forward.The FWI algorithm relies on a pseudoconservative form of the velocity-stress acoustic wave equation.The numerical simulation data of 3D SEG/EAGE target model verified 3Dacoustic full waveform inversion algorithm.
The full waveform inversion(FWI) method makes use of the kinematic and dynamic information of pre-stack seismic data to rebuild underground geophysical parameters.Due to its high resolution,it has the potential of revealing structure details and lithology characteristic under complex geological background.We present some methodological and algorithmic developments of 3D acoustic full waveform inversion by frequency-domain inversion combined with time-domain forward.The FWI algorithm relies on a pseudoconservative form of the velocity-stress acoustic wave equation.The numerical simulation data of 3D SEG/EAGE target model verified 3Dacoustic full waveform inversion algorithm.
引文
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[9]Hu G,Etieen V,Castellanos C,et al.Assessment of 3dacoustic isotropic full waveform inversion of wide-azi-muth obc data from valhall[J].Expanded Abstracts of82nd Annual Internat SEG Mtg,2012,1-6
[10]Pratt R G.Velocity models from frequency-domainwaveform tomography:past,present and future[J].Expanded Abstracts of 66th EAGE Annual Confer-ence,2004,Z99
[11]Plessix R E.A review of the adjoint-state method forcomputing the gradient of a functional with geophys-ical applications[J].Geophysical Journal Internation-al,2006,167(2):495-503
[12]Castellanos C,Etienne V,Hu G,et al.Algorithmicand methodological developments towards full wave-form inversion in 3delastic media[J].Expanded Ab-stracts of 81st Annual Internat SEG Mtg,2011,2793-2798
[13]Sirgue L,Pratt R G.Efficient waveform inversionand imaging:a strategy for selecting temporal fre-quencies[J].Geophysics,2004,69(1):231-248
[14]Ravaut C,Operto S,Improta L,el al.Multi-scale im-aging of complex structures from multi-fold wide-ap-erture seismic data by frequency-domain full-wave-field inversions:application to a thrust belt[J].Geo-physical Journal International,2004,159(3):1032-1056
[15]Operto S,Virieux J,Amestoy P,et al.3Dfinite-difference frequency-domain modeling of visco-a-coustic wave propagation using a massively paralleldirect solver:a feasibility study[J].Geophysics,2007,72(5):SM195-SM211
[16]Virieux J,Operto S.An overview of full-waveforminversion in exploration geophysics[J].Geophysics,2009,74(6):WCC1-WCC26
[17]Hu G.Three-dimensional acoustic full waveform in-version:method,algorithms and application to theValhall petroleum field[D].Grenoble:Universite deUniversite Joseph Fourier,2012
[2]Tarantola A.Inversion of seismic reflection data inthe acoustic approximation[J].Geophysics,1984,49(8):1259-1266
[3]Gauthier O,Virieux J,Tarantola A.Two-dimension-al nonlinear inversion of seismic waveforms:numeri-cal results[J].Geophysics,1986,51(7):1387-1403
[4]Mora P R.Nonlinear two-dimensional elastic inver-sion of multi-offset seismic data[J].Geophysics,1987,52(9):1211-1228
[5]Pratt R G,Worthington M H.Inverse theory appliedto multi-source cross-hole tomography,part I:acous-tic wave-equation method[J].Geophysical Prospec-ting,1990,38(3):287-310
[6]Sirgue L,Barkved O I,Dellinger J,et al.Full wave-form inversion:the next leap forward in imaging atValhall[J].First Break,2010,28(1):65-70
[7]Plessix R E,Perkins C.Full waveform inversion of adeep water ocean bottom seismometer dataset[J].First Break,2010,28(1):71-78
[8]Ben Hadj Ali H,Operto S,Virieux J.An efficientfrequency-domain full waveform inversion method u-sing simultaneous encoded sources[J].Geophysics,2011,76(4):R109
[9]Hu G,Etieen V,Castellanos C,et al.Assessment of 3dacoustic isotropic full waveform inversion of wide-azi-muth obc data from valhall[J].Expanded Abstracts of82nd Annual Internat SEG Mtg,2012,1-6
[10]Pratt R G.Velocity models from frequency-domainwaveform tomography:past,present and future[J].Expanded Abstracts of 66th EAGE Annual Confer-ence,2004,Z99
[11]Plessix R E.A review of the adjoint-state method forcomputing the gradient of a functional with geophys-ical applications[J].Geophysical Journal Internation-al,2006,167(2):495-503
[12]Castellanos C,Etienne V,Hu G,et al.Algorithmicand methodological developments towards full wave-form inversion in 3delastic media[J].Expanded Ab-stracts of 81st Annual Internat SEG Mtg,2011,2793-2798
[13]Sirgue L,Pratt R G.Efficient waveform inversionand imaging:a strategy for selecting temporal fre-quencies[J].Geophysics,2004,69(1):231-248
[14]Ravaut C,Operto S,Improta L,el al.Multi-scale im-aging of complex structures from multi-fold wide-ap-erture seismic data by frequency-domain full-wave-field inversions:application to a thrust belt[J].Geo-physical Journal International,2004,159(3):1032-1056
[15]Operto S,Virieux J,Amestoy P,et al.3Dfinite-difference frequency-domain modeling of visco-a-coustic wave propagation using a massively paralleldirect solver:a feasibility study[J].Geophysics,2007,72(5):SM195-SM211
[16]Virieux J,Operto S.An overview of full-waveforminversion in exploration geophysics[J].Geophysics,2009,74(6):WCC1-WCC26
[17]Hu G.Three-dimensional acoustic full waveform in-version:method,algorithms and application to theValhall petroleum field[D].Grenoble:Universite deUniversite Joseph Fourier,2012
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