Application of least squares one-way wave migration in irregular sampling data of Bohai Bay Basin

PreviousNext No AccessSecond International Meeting for Applied Geoscience & EnergyApplication of least squares one-way wave migration in irregular sampling data of Bohai Bay BasinAuthors: Lv YongchangLi DaoshanWang YongmingMeng JieFeng XukuiHu DanWu XiaofengKong ZhaojuLv YongchangBGP, CNPCSearch for more papers by this author, Li DaoshanBGP, CNPCSearch for more papers by this author, Wang YongmingBGP, CNPCSearch for more papers by this author, Meng JieBGP, CNPCSearch for more papers by this author, Feng XukuiBGP, CNPCSearch for more papers by this author, Hu DanBGP, CNPCSearch for more papers by this author, Wu XiaofengBGP, CNPCSearch for more papers by this author, and Kong ZhaojuBGP, CNPCSearch for more papers by this authorhttps://doi.org/10.1190/image2022-3751366.1 SectionsSupplemental MaterialAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail AbstractThe conventional migration imaging technology is not the inverse of Born forward modeling, but its conjugate. Because the field acquisition and imaging processing are affected by the complexity of surface obstacles and subsurface medium, it is difficult to eliminate the influence of seismic wavelet. The obtained imaging is the fuzzy result of the real reflection coefficient filtered by Hessian matrix, It can not provide reliable results reflecting the dynamics characteristics of seismic wave field with high amplitude fidelity. The least squares migration technology based on inversion theory regards the imaging problem as an inverse problem, determines the rationality of imaging by comparing the correlation between the synthetic data generated by the migration image and the field data, and improves the correlation through iterative correction imaging, so as to obtain the imaging results with higher resolution and better amplitude fidelity. In this paper, the least squares one-way wave migration is applied on both the forward simulation data and the irregular spatial sampling data of Bohai Bay Basin, which effectively improves the resolution and fidelity of seismic data and the imaging of uneven illumination area of the geometry.Keywords: least-squares migration, irregular sampling, resolution, fidelity, one-way wave migrationPermalink: https://doi.org/10.1190/image2022-3751366.1FiguresReferencesRelatedDetails Second International Meeting for Applied Geoscience & EnergyISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 2022 Pages: 3694 publication data© 2022 Published in electronic format with permission by the Society of Exploration Geophysicists and the American Association of Petroleum GeologistsPublisher:Society of Exploration Geophysicists HistoryPublished Online: 15 Aug 2022 CITATION INFORMATION Lv Yongchang, Li Daoshan, Wang Yongming, Meng Jie, Feng Xukui, Hu Dan, Wu Xiaofeng, and Kong Zhaoju, (2022), "Application of least squares one-way wave migration in irregular sampling data of Bohai Bay Basin," SEG Technical Program Expanded Abstracts : 2749-2753. https://doi.org/10.1190/image2022-3751366.1 Plain-Language Summary Keywordsleast-squares migrationirregular samplingresolutionfidelityone-way wave migrationPDF DownloadLoading ...