1-20 of 25
Keywords: differential semblance optimization
Close
Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3215490
..., the traditional angle domain based method is not very effective for recovering the very low wavenumbers. To deal with those issues, we introduce true-amplitude, angle domain common-image gathers from one-way wave-equation to the differential semblance optimization (DSO). To compensate for the high-passed filter...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3215493
... Presentation Start Time: 9:20 AM Location: 217B Presentation Type: Oral illumination migration velocity analysis differential semblance optimization operator annual meeting seg international exposition upstream oil & gas artifact china university quantitative migration weighting operator...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216338
... waveform inversion differential semblance optimization extension inversion university huang reservoir characterization syme upstream oil & gas nammour tomography source extension rice university annihilator artificial intelligence society of exploration geophysicists fwi optimization...
Proceedings Papers

Paper presented at the 2016 SEG International Exposition and Annual Meeting, October 16–21, 2016
Paper Number: SEG-2016-13909106
... velocity model upstream oil & gas operator seg seg international exposition reservoir characterization migration velocity analysis initial velocity differential semblance optimization true velocity differential semblance optimization method gradient optimization problem angle...
Proceedings Papers

Paper presented at the 2016 SEG International Exposition and Annual Meeting, October 16–21, 2016
Paper Number: SEG-2016-13762051
..., Application of the variable projection scheme to frequency- domain full-waveform inversion: Geophysics, 78, no. 6, R249 R257, httpdx.doi.org/10.1190/geo2012-0351.1. Plessix, R.-E., 2000, Automatic cross-well tomography: an application of the differential semblance optimization to two real examples...
Proceedings Papers

Paper presented at the 2016 SEG International Exposition and Annual Meeting, October 16–21, 2016
Paper Number: SEG-2016-13966097
... gradient annual international meeting reflectivity annual meeting incoherency reservoir characterization geophysics inversion inverted model background model differential semblance optimization syme waveform inversion reflection seg seg international exposition upstream oil & gas...
Proceedings Papers

Paper presented at the 2015 SEG Annual Meeting, October 18–23, 2015
Paper Number: SEG-2015-5872566
... source waveforms to depend on source and receiver coordinates. optimization problem full waveform inversion upstream oil & gas receiver relation differential semblance optimization reservoir characterization inversion traveltime tomography gradient geophysics source inversion...
Proceedings Papers

Paper presented at the 2013 SEG Annual Meeting, September 22–27, 2013
Paper Number: SEG-2013-0813
... of our proposed method. differential semblance optimization waveform inversion reflectivity approximation extension operator syme geophysics upstream oil & gas velocity analysis annual international meeting chebyshev iteration seg houston 2013 inverse problem gradient formula...
Proceedings Papers

Paper presented at the 2012 SEG Annual Meeting, November 4–9, 2012
Paper Number: SEG-2012-0563
... differential semblance optimization Illumination compensation for subsalt image-domain wavefield tomography Tongning Yang , Center for Wave Phenomena, Colorado School of Mines, Jeffrey Shragge, School of Earth and Environment, University of Western Australia, and Paul Sava, Center for Wave Phenomena...
Proceedings Papers

Paper presented at the 2012 SEG Annual Meeting, November 4–9, 2012
Paper Number: SEG-2012-1190
... SUMMARY This paper describes a nonlinear differential semblance approach to waveform inversion. Nonlinear differential semblance optimization combines the ability of full waveform inversion to account for nonlinear physical effects, such as multiple reflections, with the tendency...
Proceedings Papers

Paper presented at the 2011 SEG Annual Meeting, September 18–23, 2011
Paper Number: SEG-2011-3877
... further multiple subsidiary (local) minima in the objective function, imposing the requirement of a very good starting model if convergence to the global minimum is to be achieved. Symes and Carrazone (1991) proposed Differential Semblance Optimization (DSO) as a robust approach to velocity analysis...
Proceedings Papers

Paper presented at the 2011 SEG Annual Meeting, September 18–23, 2011
Paper Number: SEG-2011-3958
... size and the computation domain for 3-D wavefield tomography, greatly improving its efficiency and flexibility. We apply differential semblance optimization (DSO) using the synthesized new data set to optimize subsalt velocities. The updated velocity model significantly improves the continuity...
Proceedings Papers

Paper presented at the 2010 SEG Annual Meeting, October 17–22, 2010
Paper Number: SEG-2010-4077
... the residual are either using differential semblance optimization (DSO) or using differential residual migration (DRM). In this paper, we present relevant theory to understand the difference these two algorithms make in the final gradient calculation. We compare and contrast the two methods with the help...
Proceedings Papers

Paper presented at the 2010 SEG Annual Meeting, October 17–22, 2010
Paper Number: SEG-2010-4071
... Summary Differential Semblance Optimization (DSO) has been shown to be a stable and robust formalism for a number of seismic inverse problems. It has been shown to work well for Wave-Equation migration velocity analysis (MVA), which may overcome some of the problems of ray-based methods...
Proceedings Papers

Paper presented at the 2009 SEG Annual Meeting, October 25–30, 2009
Paper Number: SEG-2009-2283
... Summary We present a 3-D automatic migration velocity analysis (MVA) algorithm based on common-azimuth migration (CAM) in the source-geophone implementation, and using differential semblance optimization (DSO). We have successfully tested the algorithm on the 3-D SEG/EAGE overthrust model...
Proceedings Papers

Paper presented at the 2009 SEG Annual Meeting, October 25–30, 2009
Paper Number: SEG-2009-2526
... for typical data, which lack low-frequency energy. To recover the low-frequency lacuna of typical data, we formulate waveform inversion as a differential semblance optimization (DSO) problem with artificial low-frequency data as control variables. This version of differential semblance with nonlinear modeling...
Proceedings Papers

Paper presented at the 2007 SEG Annual Meeting, September 23–28, 2007
Paper Number: SEG-2007-1800
... in this class are Differential Semblance Optimization, proposed by Symes and Carazzone (1991), which measures flatness of image gathers and depth-focusing, which uses a generalization of the imaging condition (MacKay and Abma, 1992; Rickett and Sava, 2002; Sava and Fomel, 2006). The migration-based functionals...
Proceedings Papers

Paper presented at the 2006 SEG Annual Meeting, October 1–6, 2006
Paper Number: SEG-2006-2112
... reservoir characterization rice university upstream oil & gas differential semblance algorithm geophysical development corp differential semblance optimization geophysics velocity analysis dsva annual international meeting Practice and Pitfalls in NMO-based Differential Semblance Velocity...
Proceedings Papers

Paper presented at the 2005 SEG Annual Meeting, November 6–11, 2005
Paper Number: SEG-2005-2249
... versteeg computation differential semblance optimization syme annual international meeting upstream oil & gas inversion dsva velocity analysis domain dso migration differential semblance velocity analysis velocity model reservoir characterization objective shot-geophone migration...
Proceedings Papers

Paper presented at the 2005 SEG Annual Meeting, November 6–11, 2005
Paper Number: SEG-2005-2237
... rms velocity mathematics differential semblance optimization differential semblance borcea upstream oil & gas papanicolaou statistically stable inversion geophysics reflectivity seismic reflection data syme reservoir characterization velocity analysis spva 1 fluctuation Velocity...

Product(s) added to cart

Close Modal