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Migration parameters

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Proceedings Papers

Paper presented at the 2016 SEG International Exposition and Annual Meeting, October 16–21, 2016
Paper Number: SEG-2016-13821285
...Optimization of the parameters in Complex Pade´ Fourier Finite-Difference migration Marco Salcedo,Ame´lia Novais, Jo¨rg Schleicher, UNICAMP & INCT-GP; and Jesse´ C. Costa, UFPA & INCT-GP SUMMARY Complex-Pade´ Fourier finite difference (CPFFD) migration is a one-way wave-equation technique...
Proceedings Papers

Paper presented at the 2015 SEG Annual Meeting, October 18–23, 2015
Paper Number: SEG-2015-5922164
... Summary In migration velocity analysis (MVA), the residual moveout in the image gather is used to obtain velocity correction parameters. In this work we propose a numerical approach to describe the moveout in the image gather considering a dipping reflector instead of using approximations. We...
Proceedings Papers

Paper presented at the 2000 SEG Annual Meeting, August 6–11, 2000
Paper Number: SEG-2000-0850
... migration reflectivity approximation plessix source wavelet slowness acquisition device diffracted arrival inverse problem time domain forward model compute chavent A 3-D Born+ray prestack depth migration for the estimation of acquisition parameters Claire Leleu , IFREMER/INRIA, Yann-Hervé De...
Proceedings Papers

Paper presented at the 1994 SEG Annual Meeting, October 23–28, 1994
Paper Number: SEG-1994-0343
... ABSTRACT No preview is available for this paper. reflection geomechanic parameter characteristic correspond geophysical system laboratory migration fluid-dynamic system upstream oil & gas application discrete system reservoir characterization variation dislocation...
Proceedings Papers

Paper presented at the 1984 SEG Annual Meeting, December 2–6, 1984
Paper Number: SEG-1984-0454
... of wide marine seismic source arrays: Presented at the Offshore Tech. Confer.. Houston. Newman, P.. 1984. Seismic response to seafloor diff ractions: First Break, 2. Choice of Scheme and Parameters for s5.7 Optimal Finite-Difference Migration in 2-D J. P, Diet. C.G.G.; and P. Lailly, Itwtitut Fsaq~rris du...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 3–7, 2021
Paper Number: PSIG-2124
... or set practices. But with increasingly complex network growth, numbers of products being transported, stringent interface management and increased focus on optimization, the legacy systems and spreadsheets may no longer support the increasing demands. Migrating from a legacy application to a standard...
Proceedings Papers

Paper presented at the SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition, October 29–31, 2019
Paper Number: SPE-196376-MS
... more production. There are still more than 10 wells identified which has fine migration issues need to be solved by matrix stimulation. By optimizing the treatment parameter, matrix stimulation could be performed by lesser cost expenditure and maintain good result in terms of to increased field...
Proceedings Papers

Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2996817
...Mitigating amplitude versus ray-parameter effect in Joint Migration Inversion using a zero-lag cross- correlation objective function of redatumed wavefields Shan Qu , Delft University of Technology, Delphi Consortium, Yimin Sun, Aramco Research Center - Delft, Aramco Overseas Company, Eric...
Proceedings Papers

Paper presented at the 2016 SEG International Exposition and Annual Meeting, October 16–21, 2016
Paper Number: SEG-2016-13858670
...: Wednesday, October 19, 2016 Start Time: 2:45:00 PM Location: 162/164 Presentation Type: ORAL wemva parameter estimation migration velocity analysis artificial intelligence reservoir characterization arntsen full waveform inversion geophysics weibull seg seg international exposition...
Proceedings Papers

Paper presented at the 2016 SEG International Exposition and Annual Meeting, October 16–21, 2016
Paper Number: SEG-2016-13821431
... velocity analysis in strongly anisotropic TTI media : 74th Annual International Meeting, SEG, Expanded Abstracts , 2347 – 2350 , 10.1190/1.1851228 . Semblance-based anisotropy parameter estimation using isotropic depth-migrated common image gathers Fan Xia*, Halliburton Summary Semblance...
Proceedings Papers

Paper presented at the 2012 SEG Annual Meeting, November 4–9, 2012
Paper Number: SEG-2012-0053
..., for example, reverse time migration (RTM). The residual correction is useful for parameter estimation. Applications to initial simple synthetic data demonstrate the accuracy of the new prestack modeling and migration approach. prestack waveeld artificial intelligence series expansion reector...
Proceedings Papers

Paper presented at the 2010 SEG Annual Meeting, October 17–22, 2010
Paper Number: SEG-2010-1065
... full wavefield inversion machine learning resolution gradient equation subsurface parameter estimation upstream research company reservoir characterization equation migration upstream oil & gas plessix approximation Subsurface parameter estimation in full wavefield inversion...
Proceedings Papers

Paper presented at the 2009 SEG Annual Meeting, October 25–30, 2009
Paper Number: SEG-2009-3989
... ABSTRACT Automatically picking on 3D volumes and fast convergence to variable wavelength are two major challenges in grid-based reflection tomography. This paper discusses a multi-parameter controlled automatically picking method that, when integrated with a fast beam migration, provides...
Proceedings Papers

Paper presented at the 2009 SEG Annual Meeting, October 25–30, 2009
Paper Number: SEG-2009-1157
... with azimuth are incorporated in the migration. Sicking, 2007, presented the concept of and uses for azimuth migration. Sicking, 2008, presented comparisons between migration analysis and sectored migration. Treadgold, 2008, discussed the uses of azimuth parameters in fracture and reservoir analysis...
Proceedings Papers

Paper presented at the 2003 SEG Annual Meeting, October 26–31, 2003
Paper Number: SEG-2003-0969
... Summary A method for applying anisotropic corrections after isotropic prestack depth migration is presented. A special post-migration CIG ordering is used to enable anisotropic parameter estimation without iterative PSDM. The optimal anisotropic parameters can be used to perform a final...
Proceedings Papers

Paper presented at the 2003 SEG Annual Meeting, October 26–31, 2003
Paper Number: SEG-2003-2128
..., hence making it very computationally intensive. Here we propose a new technique in which for each common image gather (CIG) we first create a table of offset-ray parameters -depth ( x-p-z ) using a local 1D assumption. Then we calculate the residual migration depth corrections in the p-z domain...
Proceedings Papers

Paper presented at the 2003 SEG Annual Meeting, October 26–31, 2003
Paper Number: SEG-2003-1118
...-stack depth migration is an efficient tool of imaging for complex geological structures, while the results of prestack depth migration are often heavily dependent on the quality of the velocity model. internat slowness velocity analysis imaging gather wavefield j-th layer ray parameter...
Proceedings Papers

Paper presented at the 2002 SEG Annual Meeting, October 6–11, 2002
Paper Number: SEG-2002-0967
... ABSTRACT Summary In the paper, we present a data-driven method for rock parameter modeling using the well and prestack depth migration data based uponneural networks. With one real case, we show the feasibility and efficiency of the method estimation prestack depth migration data...
Proceedings Papers

Paper presented at the 2000 SEG Annual Meeting, August 6–11, 2000
Paper Number: SEG-2000-0794
... Summary The Kirchhoff-type migration operator is a diffraction stack over the seismic traces. For the image points on the reflectors, the traces within the neighboring area of the specular ray contribute most to the diffraction stack. Arbitrary specular-ray-related parameters can be obtained...
Proceedings Papers

Paper presented at the 2000 SEG Annual Meeting, August 6–11, 2000
Paper Number: SEG-2000-1004
... Summary An approach to parameter estimation in TI media is presented, using prestack map migration as a primary process. The input is interpreted maps of prestack travel time corresponding to various wave modes, e.g., PP and PS. As output, RMS depth deviation is obtained as a function...

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