Reconstructed full-waveform inversion with the extended source (2017)

PreviousNext No AccessSEG Technical Program Expanded Abstracts 2017Reconstructed full-waveform inversion with the extended sourceAuthors: Chao WangDavid YingstPaul FarmerIan JonesGary MartinJacques LeveilleChao WangION, David YingstION, Paul FarmerION, Ian JonesION, Gary MartinION, and Jacques LeveilleIONhttps://doi.org/10.1190/segam2017-17736054.1 SectionsSupplemental MaterialAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Abstract Conventional full waveform inversion (FWI) has been extensively applied to real seismic data and has successfully generated high-fidelity earth models for better seismic imaging and structural interpretation. Considering the nonlinearity and illposedness of the problem for conventional FWI, the success in providing reliable updated models heavily relies on the accuracy of the initial models and low frequency contents in the acquired data. To relax the requirements of good initial models and adequate low frequencies, we propose a novel approach to time domain reconstructed full waveform inversion with the extended source (RFWI). RFWI relaxes the constraint that the forward modeled data exactly solve the wave equation as in conventional FWI, and instead uses an [lscript]2 approximate solution. RFWI estimates earth models and jointly reconstructs an extended source by minimizing an objective function that penalizes the wave equation error while fitting the data. RFWI extends the solution space and therefore overcomes some of the problems with local minima that prevent conventional FWI from obtaining a reliable solution with an inaccurate starting model and/or insufficient low-frequency data. Presentation Date: Wednesday, September 27, 2017 Start Time: 1:50 PM Location: 361F Presentation Type: ORAL Keywords: reconstruction, reflection, salt, time-domain, full-waveform inversionPermalink: https://doi.org/10.1190/segam2017-17736054.1FiguresReferencesRelatedDetailsCited byExtended-space full-waveform inversion in the time domain with the augmented Lagrangian methodAli Gholami, Hossein S. Aghamiry, and Stéphane Operto23 November 2021 | GEOPHYSICS, Vol. 87, No. 1Efficient Wavefield Inversion With Outer Iterations and Total Variation ConstraintIEEE Transactions on Geoscience and Remote Sensing, Vol. 58, No. 8An efficient wavefield inversion for transversely isotropic media with a vertical axis of symmetryChao Song and Tariq Alkhalifah18 March 2020 | GEOPHYSICS, Vol. 85, No. 3An efficient wavefield inversion: Using a modified source function in the wave equationTariq Alkhalifah and Chao Song16 October 2019 | GEOPHYSICS, Vol. 84, No. 6A strategy for regional-scale FWI in the salt provinces offshore BrazilJuergen Fruehn, Stuart Greenwood, Ross O"Driscoll, Ian Jones, and John Brittan10 August 2019From incremental to transformational workflows: Contemporary imaging and what comes nextJohn Brittan and Ian F. Jones1 August 2019Full-waveform inversion for imaging and geologic interpretation: A deepwater Gulf of Mexico case studyYannick Cobo, Carlos Calderón-Macías, and Shihong Chi15 March 2019 | Interpretation, Vol. 7, No. 2FWI evolution — From a monolith to a toolkitJohn Brittan and Ian Jones28 February 2019 | The Leading Edge, Vol. 38, No. 3Improving model resolution with FWI for imaging and interpretation in a Gulf of Mexico datasetYannick Cobo, Carlos Calderón-Macías, and Shihong Chi27 August 2018Recovering Nile Delta Messinian salt structure using reconstructed full-waveform inversionJuergen Fruehn, Ken McDermott, Sahil Mannick, and Chao Wang17 August 2017Full-Waveform Inversion II Complete Session17 August 2017 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 Chao Wang, David Yingst, Paul Farmer, Ian Jones, Gary Martin, and Jacques Leveille, (2017), "Reconstructed full-waveform inversion with the extended source," SEG Technical Program Expanded Abstracts : 1449-1453. https://doi.org/10.1190/segam2017-17736054.1 Plain-Language Summary Keywordsreconstructionreflectionsalttime-domainfull-waveform inversionPDF DownloadLoading ...