Seismic reflectivity inversion using non-stationary basis pursuit decomposition based on generalized seismic wavelets

PreviousNext No AccessSEG Technical Program Expanded Abstracts 2017Seismic reflectivity inversion using non-stationary basis pursuit decomposition based on generalized seismic waveletsAuthors: Zhenan YaoZhenan YaoChina University of PetroleumSearch for more papers by this authorhttps://doi.org/10.1190/segam2017-17736191.1 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Abstract In contrast to the sparse-spike seismic inversion, basis pursuit inversion (BPI) can effectively remove wavelet interference in seismic data and provide better resolution, geological continuity which has been proposed for several years. In conventional basis pursuit inversion, a constant wavelet was used to build the dictionary for stationary seismic trace assumption. Considering the effect of noise and attenuation on seismic data, a non-stationary inversion scheme was proposed in this paper by including several generalized wavelets all at once which means a more reasonable and complete wavelet dictionary was built for basis pursuit decomposition. Generalized wavelets were estimated from power spectrum of seismic data along time axis which could represent the seismic data better and seismic phase would be considered. Synthesized data test and field data test show that non-stationary BPI would give better resolution and geological continuity in comparison to stationary BPI. Presentation Date: Tuesday, September 26, 2017 Start Time: 3:30 PM Location: Exhibit Hall C/D Presentation Type: POSTER Keywords: high-resolution, inversion, waveletPermalink: https://doi.org/10.1190/segam2017-17736191.1FiguresReferencesRelatedDetailsCited byModified basis pursuit seismic reflectivity inversion: Gulf of Mexico example, South Pelto blockLavnish Gupta and Nimisha Vedanti1 September 2021 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 Zhenan Yao, (2017), "Seismic reflectivity inversion using non-stationary basis pursuit decomposition based on generalized seismic wavelets," SEG Technical Program Expanded Abstracts : 803-807. https://doi.org/10.1190/segam2017-17736191.1 Plain-Language Summary Keywordshigh-resolutioninversionwaveletPDF DownloadLoading ...