Anisotropic model building, DAS simulation and imaging

PreviousNext No AccessSEG Technical Program Expanded Abstracts 2019Anisotropic model building, DAS simulation and imagingAuthors: Scott LeaneyTakashi MizunoEdgar VelezTheo CunyMarco PerezScott LeaneySchlumbergerSearch for more papers by this author, Takashi MizunoSchlumbergerSearch for more papers by this author, Edgar VelezSchlumbergerSearch for more papers by this author, Theo CunySchlumbergerSearch for more papers by this author, and Marco PerezVelvet EnergySearch for more papers by this authorhttps://doi.org/10.1190/segam2019-3215957.1 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail AbstractSonic anisotropy is integrated with multi-offset hybrid cable DAS VSP data to build and calibrate VTI models with different scales. Microseismic, seismic reflection and imaging scale models are produced. The initial VTI model from sonic anisotropy is cross-validated against microseismic data; lower frequency seismic reflection and imaging models are calibrated using travel time inversion of direct P times from the hybrid multi-offset VSP data set. The reflection model is used for simulation and prestack seismic well-tie; the imaging model is used for DAS VSP migration. The models aid in quantitative interpretation and provide a starting point for a future depth imaging project. DAS simulation uses dynamic ray theory to compute axial strain and includes wavenumber system response filters. Simulations are shown for offset VSP and microseismic. The simulation theory informs amplitude factors for true amplitude DAS VSP imaging.Presentation Date: Tuesday, September 17, 2019Session Start Time: 1:50 PMPresentation Time: 2:40 PMLocation: 221CPresentation Type: OralKeywords: DAS (distributed acoustic sensors), anisotropy, VTI, vertical seismic profile (VSP), unconventionalPermalink: https://doi.org/10.1190/segam2019-3215957.1FiguresReferencesRelatedDetailsCited byThe importance of viscoelastic waveform inversion in VSP: Synthetic studiesYu Chen, Shujaat Ali, Takashi Mizuno, Pierre Bettinelli, and Joël Le Calvez15 August 2022Verticalized Sonic Measurements in Deviated Wellbore for Accurate Velocity Modelling and Seismic Well Tie in Offshore Malaysia18 March 2022A Literature Review10 December 2021Characterizing anelastic attenuation using distributed acoustic sensing (DAS) dataAli Sayed, Manish Lal Khaitan, Shujaat Ali, and Alejandro Martinez1 September 2021Benchmarking DAS VSP migration methods with geophone VSP migration: Case study for the generalized Radon transform migrationTakashi Mizuno and Shujaat Ali1 September 20211D viscoelastic waveform inversion of zero-offset vertical seismic profile dataYu Chen, Takashi Mizuno, Pierre Bettinelli, and Joël Le Calvez1 September 2021Anisotropic imaging and AVA inversion of DAS dataScott Leaney, Rafael Guerra, and Edan Gofer1 September 2021Characteristics of microseismic data recorded by distributed acoustic sensing systems in anisotropic mediaA. F. Baird, A. L. Stork, S. A. Horne, G. Naldrett, J.-M. Kendall, J. Wookey, J. P. Verdon, and A. Clarke10 June 2020 | GEOPHYSICS, Vol. 85, No. 4Modeling the seismic response of individual hydraulic fracturing stages observed in a time-lapse distributed acoustic sensing vertical seismic profiling surveyGary Binder, Aleksei Titov, Youfang Liu, James Simmons, Ali Tura, Grant Byerley, and David Monk30 April 2020 | GEOPHYSICS, Vol. 85, No. 4 SEG Technical Program Expanded Abstracts 2019ISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 2019 Pages: 5407 publication data© 2019 Published in electronic format with permission by the Society of Exploration GeophysicistsPublisher:Society of Exploration Geophysicists HistoryPublished Online: 10 Aug 2019 CITATION INFORMATION Scott Leaney, Takashi Mizuno, Edgar Velez, Theo Cuny, and Marco Perez, (2019), "Anisotropic model building, DAS simulation and imaging," SEG Technical Program Expanded Abstracts : 999-1003. https://doi.org/10.1190/segam2019-3215957.1 Plain-Language Summary KeywordsDAS (distributed acoustic sensors)anisotropyVTIvertical seismic profile (VSP)unconventionalPDF DownloadLoading ...