Using PSPI to accelerate seismic Q modeling based on Hermite-distributed approximating functional

Abstract

PreviousNext No AccessSEG Technical Program Expanded Abstracts 2017Using PSPI to accelerate seismic Q modeling based on Hermite-distributed approximating functionalAuthors: Mengyao JiDonald KouriTieyuan ZhuJie YaoMengyao JiUniversity of HoustonSearch for more papers by this author, Donald KouriUniversity of HoustonSearch for more papers by this author, Tieyuan ZhuPennsylvania State UniversitySearch for more papers by this author, and Jie YaoTexas Tech UniversitySearch for more papers by this authorhttps://doi.org/10.1190/segam2017-17790651.1 SectionsSupplemental MaterialAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Abstract The attenuation effect of seismic waves has been recently incorporated into a fractional Laplacian viscoacoustic wave equation. Solving this equation requires a special treatment for the fractional Laplacian operators. The previous promising approach involves using a Hermite distributed approximating functional (HDAF). As a local-spectral method, HDAF method possesses the accuracy of a global method. However, the computational cost of the HDAF method increases dramatically as the complexity of the Q model increases. In this paper, we propose to use a phase shift plus interpolation (PSPI) technique to reduce the computational expense of HDAF method. The basic idea is to compute reference wave-fileds for a set of reference Q's and estimate the final wavefield using interpolation. Synthetic examples demonstrate the PSPI technique can greatly reduce the computational cost of HDAF method while preserving the accuracy. Presentation Date: Wednesday, September 27, 2017 Start Time: 3:55 PM Location: 381A Presentation Type: ORAL Keywords: attenuation, Q, interpolation, modelingPermalink: https://doi.org/10.1190/segam2017-17790651.1FiguresReferencesRelatedDetailsCited byFractional Laplacians viscoacoustic wavefield modeling with k-space-based time-stepping error compensating schemeNing Wang, Tieyuan Zhu, Hui Zhou, Hanming Chen, Xuebin Zhao, and Yukun Tian6 December 2019 | GEOPHYSICS, Vol. 85, No. 1Efficient modeling of wave propagation in a vertical transversely isotropic attenuative medium based on fractional LaplacianTieyuan Zhu and Tong Bai11 March 2019 | GEOPHYSICS, Vol. 84, No. 3Solving fractional Laplacian viscoelastic wave equations using domain decompositionZhiguang Xue, Hyoungsu Baek, Houzhu Zhang, Yang Zhao, Tieyuan Zhu, and Sergey Fomel27 August 2018 SEG Technical Program Expanded Abstracts 2017ISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 2017 Pages: 6093 publication data© 2017 Published in electronic format with permission by the Society of Exploration GeophysicistsPublisher:Society of Exploration Geophysicists HistoryPublished Online: 17 Aug 2017 CITATION INFORMATION Mengyao Ji, Donald Kouri, Tieyuan Zhu, and Jie Yao, (2017), "Using PSPI to accelerate seismic Q modeling based on Hermite-distributed approximating functional," SEG Technical Program Expanded Abstracts : 4091-4096. https://doi.org/10.1190/segam2017-17790651.1 Plain-Language Summary KeywordsattenuationQinterpolationmodelingPDF DownloadLoading ...