VTI full waveform inversion: a parameterization study with a narrow azimuth streamer data example

Abstract

PreviousNext No AccessSEG Technical Program Expanded Abstracts 2010VTI full waveform inversion: a parameterization study with a narrow azimuth streamer data exampleAuthors: René‐Edouard PlessixHarry RynjaRené‐Edouard PlessixShell InternationalSearch for more papers by this author and Harry RynjaShell InternationalSearch for more papers by this authorhttps://doi.org/10.1190/1.3513936 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Abstract Full Waveform Inversion (FWI) requires long offset data, notably diving/refracted waves, to update the velocity. Often, anisotropy is needed to model the kinematics of the short and long offsets. FWI may therefore require an anisotropic modeling to correctly represent the kinematics of all the waves. With a change of variables in the VTI (vertical transverse isotropic) wave equations, it can be shown that VTI FWI mainly depends on the NMO (normal moveout) velocity and the η parameter. There is a trade‐off between depth and δ parameter. When using only the low frequencies of the seismic data and an acoustic modeling, FWI should primally focus on the kinematics of the waveform. A logical parameterization for VTI FWI is then the NMO velocity, the η parameter, and the δ parameter, since the kinematics is mainly parameterized by the NMO velocity and the η parameter in a smoothed medium. The η parameter may be replaced by the horizontal velocity. An elliptic FWI is therefore more or less equivalent to an isotropic FWI with a stretched depth. This is illustrated with several FWI on a narrow azimuth real data set recorded in the North Sea. We also show that taking into account anellipticity in the initial model improves the results of FWI, although there is a trade‐off between velocity heterogeneities and anisotropy.Permalink: https://doi.org/10.1190/1.3513936FiguresReferencesRelatedDetailsCited byAzimuthally-dependent scattering potentials and full waveform inversion sensitivities in low-loss viscoelastic orthorhombic media10 June 2019 | Journal of Geophysics and Engineering, Vol. 16, No. 2Elastic full-waveform inversion for VTI media: Methodology and sensitivity analysisNishant Kamath and Ilya Tsvankin18 March 2016 | GEOPHYSICS, Vol. 81, No. 2Elastic Full Waveform Inversion (FWI) of Reflection Data with a Phase Misfit Function8 April 2016Shot- and angle-domain wave-equation traveltime inversion of reflection data: TheorySanzong Zhang, Yi Luo, and Gerard Schuster26 May 2015 | GEOPHYSICS, Vol. 80, No. 4Simultaneous inversion of velocity and density in time-domain full waveform inversionJianyong Bai* and David Yingst5 August 2014A new parameterization for anisotropy update in full waveform inversionNuno V. da Silva*, Andrew Ratcliffe, Graham Conroy, Vetle Vinje, and Geoff Body5 August 2014Elastic full-waveform inversion of transmission data in 2D VTI mediaNishant Kamath and Ilya Tsvankin5 August 2014Analytical approximations of diving-wave imaging in constant-gradient mediumAlexey Stovas and Tariq Alkhalifah24 June 2014 | GEOPHYSICS, Vol. 79, No. 4Viscoacoustic waveform inversion of velocity structures in the time domainJianyong Bai, David Yingst, Robert Bloor, and Jacques Leveille2 May 2014 | GEOPHYSICS, Vol. 79, No. 3Multiparameter waveform inversion of a large wide-azimuth low-frequency land data set in OmanAlexandre Stopin, René-Édouard Plessix, and Said Al Abri22 May 2014 | GEOPHYSICS, Vol. 79, No. 3Anisotropic migration velocity analysis using reverse-time migrationWiktor Waldemar Weibull and Børge Arntsen4 December 2013 | GEOPHYSICS, Vol. 79, No. 1Full-waveform inversion of multicomponent data for horizontally layered VTI mediaNishant Kamath and Ilya Tsvankin25 July 2013 | GEOPHYSICS, Vol. 78, No. 5Multiparameter full-waveform inversion: Marine and land examplesR. E. Plessix, P. Milcik, H. Rynja, A. Stopin, K. Matson, and S. Abri3 September 2013 | The Leading Edge, Vol. 32, No. 9Recent Advances in Data Selection and Data Conditioning for FWIDaniela Amazonas, Stephen Alwon, Denes Vigh, Hongyan Li, Timothy Bunting, Stephen Klug, and Alex Cooke9 January 2014Inversion on Reflected Seismic WaveSheng Xu, Daoliu Wang, Feng Chen, Gilles Lambaré, and Yu Zhang25 October 2012Full-waveform inversion of multicomponent data for layered VTI mediaNishant Kamath and Ilya Tsvankin25 October 2012Exploitation of data-information content in elastic-waveform inversionsEdgar Manukyan, Sabine Latzel, Hansruedi Maurer, Stefano Marelli, and Stewart A. Greenhalgh5 March 2012 | GEOPHYSICS, Vol. 77, No. 2Migration velocity analysis for anisotropic modelsYunyue (Elita) Li and Biondo Biondi25 May 2012Surface seismic full waveform inversion parametrization study in an acoustic vertical transversely isotropic mediumQin Cao and René Édouard Plessix8 August 2011 SEG Technical Program Expanded Abstracts 2010ISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 2010 Pages: 4453 publication data© 2010 Copyright © 2010 Society of Exploration GeophysicistsPublisher:Society of Exploration Geophysicists HistoryPublished Online: 21 Oct 2010 CITATION INFORMATION René‐Edouard Plessix and Harry Rynja, (2010), "VTI full waveform inversion: a parameterization study with a narrow azimuth streamer data example," SEG Technical Program Expanded Abstracts : 962-966. https://doi.org/10.1190/1.3513936 Plain-Language Summary PDF DownloadLoading ...