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Keywords: temporal frequency
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Proceedings Papers

Paper presented at the 2015 SEG Annual Meeting, October 18–23, 2015
Paper Number: SEG-2015-5917235
... Summary We present a survey sinking based framework for residual migration velocity analysis. By using a migration algorithm in the temporal frequency domain, our migration algorithm is efficient and allows us to pick velocity perturbations directly. Picking velocity perturbation directly...
Proceedings Papers

Paper presented at the 2011 SEG Annual Meeting, September 18–23, 2011
Paper Number: SEG-2011-3095
... the f-p domain. data corresponding seismic event synthetic data linear event curved event weighting function radon domain upstream oil & gas reference list temporal frequency fk spectrum seismic data interpolation spectrum domain spectra weighting function extrapolation spectra...
Proceedings Papers

Paper presented at the 2009 SEG Annual Meeting, October 25–30, 2009
Paper Number: SEG-2009-2248
... sequential order of complex-valued frequencies in 2-D plane to perform the sequential inversion. An example of the sequential order is shown in Figure 2(b). Fourier temporal frequency ( )f La pl ac e da m pi ng c on st an t ( ) Laplace-domain waveform inversion Laplace-Fourier-domain waveform inversion...
Proceedings Papers

Paper presented at the 2008 SEG Annual Meeting, November 9–14, 2008
Paper Number: SEG-2008-3280
... such as the amplitude, phase or the Hartley spectrum. Computations of the eigenvalue spectra of the Hessian matrix and the model resolution matrices reveal the benefits of simultaneously inverting several frequencies. We also show that (i) temporal frequency bandwidth is more important than dense spatial sampling (i.e...
Proceedings Papers

Paper presented at the 2007 SEG Annual Meeting, September 23–28, 2007
Paper Number: SEG-2007-2762
... velocity model average velocity deviation phase factor geophysics parameter model horizontal wavenumber temporal frequency layer thickness Kinematically equivalent velocity distributions Alexey Stovas*, NTNU, Trondheim, Norway Summary Interpretation of the estimated traveltime parameters depends...
Proceedings Papers

Paper presented at the 2006 SEG Annual Meeting, October 1–6, 2006
Paper Number: SEG-2006-2146
... numerical results in 1D are shown for several test cases. geophysics temporal frequency pratt upstream oil & gas inversion artificial intelligence reservoir characterization waveform inversion inverse propagation seismic waveform inversion equation wave velocity frequency domain...
Proceedings Papers

Paper presented at the 2002 SEG Annual Meeting, October 6–11, 2002
Paper Number: SEG-2002-1034
..., illustrating these effects by modeling absorption for homogeneous and layered models. We find that when S and P-wave attenuation filters are compared in depth, they are exactly equal for the same Q value, in the homogeneous case. equation dispersion reservoir characterization temporal frequency...
Proceedings Papers

Paper presented at the 2001 SEG Annual Meeting, September 9–14, 2001
Paper Number: SEG-2001-0698
...An optimal choice of temporal frequencies for imaging: application to waveform inversion. L. Sirgue*, Ecole Normale Supérieure de Paris/ CGG R & D, R. G. Pratt, Queen s University. Summary We present a methodology defining an optimal temporal frequency sequence in the reconstruction of velocity...
Proceedings Papers

Paper presented at the 1998 SEG Annual Meeting, September 13–18, 1998
Paper Number: SEG-1998-1515
... ABSTRACT No preview is available for this paper. correction temporal frequency attenuation upstream oil & gas free-surface multiple seismic data reservoir characterization geophysics signature inverse source signature source signature inverse multiple attenuation...
Proceedings Papers

Paper presented at the 1997 SEG Annual Meeting, November 2–7, 1997
Paper Number: SEG-1997-1100
... ABSTRACT No preview is available for this paper. reservoir characterization upstream oil & gas sinc interpolation fourier transform original trace amplitude spectrum frequency gulunay trace interpolation temporal frequency interpolator wavenumber interpolation factor...
Proceedings Papers

Paper presented at the 1996 SEG Annual Meeting, November 10–15, 1996
Paper Number: SEG-1996-1438
... ABSTRACT No preview is available for this paper. temporal frequency midpoint reservoir characterization transformation noise spatial domain irregularly forward model fourier transform transform domain parabolic radon transform sparse radon fourier domain noise event radon...
Proceedings Papers

Paper presented at the 1984 SEG Annual Meeting, December 2–6, 1984
Paper Number: SEG-1984-0812
... between the velocities determined and the actual sub- surface velocity field. The procedure is implemented in the three-dimensional frequency domain (temporal frequency, offset spatial frequency, common-midpoint spatial frequen- cy), and because not all frequency points contain seismic signal, only...

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