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Keywords: fourier domain
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Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3583112
... of time and memory costs (van Leeuwen physical domain (Fig. 1b). Also, its representation in the KL and Herrmann, 2016). and Fourier domains and the reconstructed images based on 98 The recently proposed iteratively-re ned wave eld reconstruc- % compression in such domains are shown in Figs. 1c-1f...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216425
... reservoir characterization seg international exposition wavefield data sparse operator acquisition solver flank reconstruction information linear system derivative wavefield reconstruction upstream oil & gas fourier domain Candes , E. J. , and D. L. , Donoho , 2005...
Proceedings Papers

Paper presented at the 2014 SEG Annual Meeting, October 26–31, 2014
Paper Number: SEG-2014-0577
... to improve the recovery results of seismic trace interpolation in curvelet domain, both in terms of convergence speed and recovery performance by using AMP in Fourier domain as a preprocessor for the l 1 recovery in Curvelet domain. upstream oil & gas seismic line seg denver 2014 recovery...
Proceedings Papers

Paper presented at the 2013 SEG Annual Meeting, September 22–27, 2013
Paper Number: SEG-2013-0956
... slice): 1) Compute the Fourier domain using a discrete Fourier transform (DFT); 2) Find the Fourier component with maximum energy; 3) Add this Fourier component to the estimated spectrum; 4) Transform this Fourier component back to the input locations; 5) Subtract the result from step 4 from the input...
Proceedings Papers

Paper presented at the 2012 SEG Annual Meeting, November 4–9, 2012
Paper Number: SEG-2012-1196
... decompositions with high sparsity. The GWT framework exploits familiar concepts from signal processing in the Fourier domain along with computational efficiencies of the Fast Fourier transform to construct invertible local plane wave decompositions with low redundancy and reasonable computational efficiency...
Proceedings Papers

Paper presented at the 2008 SEG Annual Meeting, November 9–14, 2008
Paper Number: SEG-2008-2122
... fourier domain herrmann helmholtz equation frequency domain time domain stable signal recovery recovery curvelet iteration upstream oil & gas frequency subset computation fourier transform measurement basis marmousi model artificial intelligence algorithm hennenfent...
Proceedings Papers

Paper presented at the 2003 SEG Annual Meeting, October 26–31, 2003
Paper Number: SEG-2003-1402
... requires a fault model as input. A computationally efficient and practical way of globally flattening 3-D data volumes in the presense of noise, non-vertical faults, and unconformities can be developed. gradient fourier domain stanford university time slice information seismic cube estimation...
Proceedings Papers

Paper presented at the 1998 SEG Annual Meeting, September 13–18, 1998
Paper Number: SEG-1998-2003
... direction, and serves in this example as noise (5% of the total energy content). The energy of this event in the Fourier domain is outside the bandwidth that we specify the data to have. For the highest temporal frequency of 125 Hz the data is spatially 20 % oversampled with respect to the five main events...
Proceedings Papers

Paper presented at the 1997 SEG Annual Meeting, November 2–7, 1997
Paper Number: SEG-1997-1171
... data fourier domain reconstruction upstream oil & gas original midpoint crossline SP 4.12 Regularization of 3-D seismic data in two steps E.A. Koek* and L. Ongkiehong, Delft University of Technology Introduction In seismic acquisition irregular and sparse sampling is a fact of life. Some...
Proceedings Papers

Paper presented at the 1997 SEG Annual Meeting, November 2–7, 1997
Paper Number: SEG-1997-1326
... ABSTRACT No preview is available for this paper. geophysics fourier domain convolution nonstationary combination wavefield extrapolation reflectivity upstream oil & gas reservoir characterization extrapolation nonstationary convolution nonstationary filter spectral matrix...
Proceedings Papers

Paper presented at the 1997 SEG Annual Meeting, November 2–7, 1997
Paper Number: SEG-1997-1163
... fourier domain algorithm fourier transform irregularly minimum apparent velocity data quality parameterization SP 4.10 Reconstruction of two-dimensional irregularly sampled wavefields Kees O.H. Hindriks*, Adri J. W. Duijndam, Michel A. Schonewille, Delft University of Technology Summary form...
Proceedings Papers

Paper presented at the 1996 SEG Annual Meeting, November 10–15, 1996
Paper Number: SEG-1996-0962
... fourier transformation point source fourier domain boundary condition current density differential equation PP 1.4 A n e w s o l u t i o n f o r t h e e l e c t r i c p o t e n t i a l i n a n a r b i - t r a r i l y a n i s o t r o p i c a n d i n h o m o g e n e o u s l a y e r e d e a r t h...
Proceedings Papers

Paper presented at the 1995 SEG Annual Meeting, October 8–13, 1995
Paper Number: SEG-1995-1350
... ABSTRACT No preview is available for this paper. spaced sample schonewille dimension reconstruction delft university fourier domain jeroen schil grochenig assumption fourier transformation spatial bandwidth feichtinger equation upstream oil & gas seismic data spectrum...
Proceedings Papers

Paper presented at the 1993 SEG Annual Meeting, September 26–30, 1993
Paper Number: SEG-1993-1026
... ABSTRACT No preview is available for this paper. velocity variation accuracy equation synthetic taylor series expansion gradient slowness-squared convolution operator extrapolation upstream oil & gas operator coefficient impulse response fourier domain pai series...
Proceedings Papers

Paper presented at the 1989 SEG Annual Meeting, October 29–November 2, 1989
Paper Number: SEG-1989-1329
... ABSTRACT No preview is available for this paper. transmitter separation resistivity response reservoir characterization electrode fourier response configuration resistivity data transmitter-receiver separation contour interval 5 fourier domain resistivity apparent...
Proceedings Papers

Paper presented at the 1989 SEG Annual Meeting, October 29–November 2, 1989
Paper Number: SEG-1989-1203
.... In the Log/Fourier domain convolutions become sums and the log of the signal amplitude for a given frequency is the sum of source-and-receiver, structural and offset related terms. Recovering the amplitude of the reflectivity is then very similar to a surface consistent static correction problem. However...
Proceedings Papers

Paper presented at the 1986 SEG Annual Meeting, November 2–6, 1986
Paper Number: SEG-1986-0431
... ABSTRACT No preview is available for this paper. velocity variation algorithm reflection reservoir characterization dmo fourier domain modeling procedure application convolution equation transformation diffraction hyperbola migration constant-offset section dmo operator...

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