Precision beam migration for depth imaging and velocity analysis

PreviousNext No AccessSEG Technical Program Expanded Abstracts 2016Precision beam migration for depth imaging and velocity analysisAuthors: Lei WangJiandong LiangZhongping QianBo ZhaoXiaoyun DaiGuoan LuoLei WangBGP CNPCSearch for more papers by this author, Jiandong LiangBGP CNPCSearch for more papers by this author, Zhongping QianBGP CNPCSearch for more papers by this author, Bo ZhaoBGP, IncSearch for more papers by this author, Xiaoyun DaiBGP, IncSearch for more papers by this author, and Guoan LuoUniversity of UtahSearch for more papers by this authorhttps://doi.org/10.1190/segam2016-13712816.1 SectionsSupplemental MaterialAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Abstract We propose a Gaussian beam pre-stack depth imaging method that makes better use of the propagation directions for the purpose of velocity analysis. When dealing with complex velocity structures, this method can lead to more accurate velocity models for imaging. Precision Beam Migration (or PBM for short) presented here directly results in two complementary, full-azimuths, common-image angle gather systems: directional and reflection, which lends naturally to tomography. Observing the fact that the maximum available reflection angle varies with depth, we change the angle division with depth to optimally extend deep events, which helps residual move-out analysis. Presentation Date: Thursday, October 20, 2016 Start Time: 11:25:00 AM Location: 171/173 Presentation Type: ORAL Keywords: multiazimuth, depth migration, common offset, common angle, beamPermalink: https://doi.org/10.1190/segam2016-13712816.1FiguresReferencesRelatedDetails SEG Technical Program Expanded Abstracts 2016ISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 2016 Pages: 5654 publication data© 2016 Published in electronic format with permission by the Society of Exploration GeophysicistsPublisher:Society of Exploration Geophysicists HistoryPublished Online: 01 Sep 2016 CITATION INFORMATION Lei Wang, Jiandong Liang, Zhongping Qian, Bo Zhao, Xiaoyun Dai, and Guoan Luo, (2016), "Precision beam migration for depth imaging and velocity analysis," SEG Technical Program Expanded Abstracts : 4393-4397. https://doi.org/10.1190/segam2016-13712816.1 Plain-Language Summary Keywordsmultiazimuthdepth migrationcommon offsetcommon anglebeamPDF DownloadLoading ...