An isotime imaging method for noise-source location

PreviousNext No AccessSEG Technical Program Expanded Abstracts 2018An isotime imaging method for noise-source locationAuthors: Qixin GeZhenbo ZhangBo MaoLiguo HanQixin GeJilin UniversitySearch for more papers by this author, Zhenbo ZhangCNOOC China Ltd. Shenzhen BranchSearch for more papers by this author, Bo MaoJilin UniversitySearch for more papers by this author, and Liguo HanJilin UniversitySearch for more papers by this authorhttps://doi.org/10.1190/segam2018-2996549.1 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Abstract In passive seismic exploration, a noise source is simply described as a source producing stochastic vibration continuously. The first breaks in the record are generally unpickable. Hence, it’s more appropriate to use the time reverse imaging (TRI) for locating noise source rather than the travel time inversion. We introduce TRI into the noise source locating and propose an isotime point imaging method for source identification. We take an imaging point as a source, calculate the travel time field around, pick several points on one or more isotime lines (we call them isotime points), and use the back propagated wavefield at the isotime points to conduct another imaging value. Combination of the results of the conventional method and that from the isotime point imaging helps suppress artifacts. Presentation Date: Wednesday, October 17, 2018 Start Time: 1:50:00 PM Location: Poster Station 14 Presentation Type: Poster Keywords: noise, sources, imaging, traveltimePermalink: https://doi.org/10.1190/segam2018-2996549.1FiguresReferencesRelatedDetails SEG Technical Program Expanded Abstracts 2018ISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 2018 Pages: 5520 publication data© 2018 Published in electronic format with permission by the Society of Exploration GeophysicistsPublisher:Society of Exploration Geophysicists HistoryPublished Online: 27 Aug 2018 CITATION INFORMATION Qixin Ge, Zhenbo Zhang, Bo Mao, and Liguo Han, (2018), "An isotime imaging method for noise-source location," SEG Technical Program Expanded Abstracts : 3082-3086. https://doi.org/10.1190/segam2018-2996549.1 Plain-Language Summary KeywordsnoisesourcesimagingtraveltimePDF DownloadLoading ...