Continuous wavelet transform phase residues applied to detect stratigraphic discontinuities

PreviousNext No AccessSEG Technical Program Expanded Abstracts 2010Continuous wavelet transform phase residues applied to detect stratigraphic discontinuitiesAuthors: Marcílio Castro de MatosOswaldo DavogustoKui ZhangKurt J. MarfurtMarcílio Castro de MatosInstituto Militar de Engenharia, BrasilSearch for more papers by this author, Oswaldo DavogustoThe University of OklahomaSearch for more papers by this author, Kui ZhangThe University of OklahomaSearch for more papers by this author, and Kurt J. MarfurtThe University of OklahomaSearch for more papers by this authorhttps://doi.org/10.1190/1.3513124 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Abstract Spectral decomposition has proven to be a powerful means of identifying strong amplitude anomalies at specific frequencies that are otherwise buried in the broad‐band response. To date, most publications have focused on using the spectral magnitude components to identify lateral changes in stratigraphy, wavefield attenuation due to Q, and unconformities between geologic formations. Although seismic acquisition and processing does a much better job in preserving phase, little has been published about interpreting the phase components resulting from spectral decomposition. In this paper, we show how Morlet complex wavelet transform (CWT) phase residues can be used to improve seismic spectral decomposition interpretation by detecting the phase discontinuities in the joint time‐frequency spectral phase component. Using synthetic models we illustrate how phase singularities can be associated to geologic features and at the end we illustrate how phase residues help the interpretation of the Anadarko Basin Red Fork channels of Oklahoma, USA.Permalink: https://doi.org/10.1190/1.3513124FiguresReferencesRelatedDetailsCited byCase study: Phase-component amplitude variation with angleElita Selmara De Abreu, John Patrick Castagna, and Gabriel Gil15 July 2019 | GEOPHYSICS, Vol. 84, No. 4Constrained least-squares spectral analysis: Application to seismic dataCharles I. Puryear, Oleg N. Portniaguine, Carlos M. Cobos, and John P. Castagna8 August 2012 | GEOPHYSICS, Vol. 77, No. 5Detecting stratigraphic discontinuities using time-frequency seismic phase residuesMarcílio Castro de Matos, Oswaldo Davogustto, Kui Zhang, and Kurt J. Marfurt24 March 2011 | GEOPHYSICS, Vol. 76, No. 2 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 Marcílio Castro de Matos, Oswaldo Davogusto, Kui Zhang, and Kurt J. Marfurt, (2010), "Continuous wavelet transform phase residues applied to detect stratigraphic discontinuities," SEG Technical Program Expanded Abstracts : 1494-1499. https://doi.org/10.1190/1.3513124 Plain-Language Summary PDF DownloadLoading ...