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• W2335108825 abstract "PreviousNext No AccessBeijing 2009 International Geophysical Conference and Exposition, Beijing, China, 24–27 April 2009Waveform inversion for Q structures from the surface seismic and walkaway VSP dataAuthors: Yang YushanYuanyuan LiTianyou LiuYang YushanInstitute of Geophysics and Geomatics, China University of GeosciencesSearch for more papers by this author, Yuanyuan LiInstitute of Geophysics and Geomatics, China University of GeosciencesSearch for more papers by this author, and Tianyou LiuInstitute of Geophysics and Geomatics, China University of GeosciencesSearch for more papers by this authorhttps://doi.org/10.1190/1.3603771 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Abstract The Q‐factor is an intrinsic property of a homogeneous medium. Any method of measuring attenuation from seismic data faces the difficulty that frequency‐dependent amplitude losses are also produced by scattering from heterogeneities, such as thin layers. In this paper, we adopted the 1D viscoelastic waveform inversion scheme for determining attenuation from seismic reflection and walkaway VSP data simultaneously. The joint inversion problem is solved by the damped least square method, and the inversion result is demonstrated to be successful using synthetic data. The synthetic example validates that by extracting all the information contained in the waveforms, the waveform inversion of the seismic reflection and transmission data is a power tool for estimating Q. As a test case, we also applied the method to a real seismic line and walkaway VSP data of Nanyang oilfield, central China. Application results indicate that estimation of the quality factor from the waveform inversion of reflection and transmission data is useful to quantify saturation, porosity and permeability.Permalink: https://doi.org/10.1190/1.3603771FiguresReferencesRelatedDetails Beijing 2009 International Geophysical Conference and Exposition, Beijing, China, 24–27 April 2009ISBN (print):978-1-56080-284-6ISSN (online):2159-6832Copyright: 2009 Pages: publication data© 2009 Copyright © 2009 Society of Exploration Geophysicists and China Petroleum SocietyPublisher:Society of Exploration Geophysicists HistoryPublished: 28 Jun 2011 CITATION INFORMATION Yang Yushan, Yuanyuan Li, and Tianyou Liu, (2009), Waveform inversion for Q structures from the surface seismic and walkaway VSP data, SEG Global Meeting Abstracts : 246-246. https://doi.org/10.1190/1.3603771 Plain-Language Summary PDF DownloadLoading ..." @default.
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• W2335108825 title "Waveform inversion for Q structures from the surface seismic and walkaway VSP data" @default.
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