3D anisotropic full-waveform inversion for complex salt provinces
Seismic imaging and inversion become extremely challenging when dealing with salt structures. Conventional state-of-the-art full-waveform inversion (FWI) fails to recover those features in areas where salt is present. A widely used solution in industry, however, involves substantial human interpreta...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-04-01
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| Series: | Frontiers in Earth Science |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/feart.2023.1164975/full |
| _version_ | 1797847206292619264 |
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| author | Junxiao Li Herurisa Rusmanugroho Mahesh Kalita Kefeng Xin Farah Syazana Dzulkefli |
| author_facet | Junxiao Li Herurisa Rusmanugroho Mahesh Kalita Kefeng Xin Farah Syazana Dzulkefli |
| author_sort | Junxiao Li |
| collection | DOAJ |
| description | Seismic imaging and inversion become extremely challenging when dealing with salt structures. Conventional state-of-the-art full-waveform inversion (FWI) fails to recover those features in areas where salt is present. A widely used solution in industry, however, involves substantial human interpretation. In this study, a regularized isotropic full-waveform inversion that penalizes the velocity drops in depth is introduced to recover the top parts of salt bodies. Then, an automatic salt flooding is applied to reconstruct deeper parts of the salt. Finally, in order to improve the accuracy of the inverted model, which is strongly affected by anisotropy, an anisotropic FWI is used to update the velocity model. We tested the approach on both synthetic and field datasets. Our FWI results revealed satisfying salt recovery as well as detailed velocity features in areas close to salt bodies. |
| first_indexed | 2024-04-09T18:07:33Z |
| format | Article |
| id | doaj.art-14ffcb939ccc4b37b40fd5bd0282cc32 |
| institution | Directory Open Access Journal |
| issn | 2296-6463 |
| language | English |
| last_indexed | 2024-04-09T18:07:33Z |
| publishDate | 2023-04-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Earth Science |
| spelling | doaj.art-14ffcb939ccc4b37b40fd5bd0282cc322023-04-14T05:03:12ZengFrontiers Media S.A.Frontiers in Earth Science2296-64632023-04-011110.3389/feart.2023.116497511649753D anisotropic full-waveform inversion for complex salt provincesJunxiao Li0Herurisa Rusmanugroho1Mahesh Kalita2Kefeng Xin3Farah Syazana Dzulkefli4PETRONAS Research Sdn Bhd, Exploration Technology, Group Research and Technology, Kuala Lumpur, MalaysiaPETRONAS Research Sdn Bhd, Exploration Technology, Group Research and Technology, Kuala Lumpur, MalaysiaS-Cube, London, United KingdomCNPC BGP, Zhuozhou, ChinaPETRONAS Research Sdn Bhd, Exploration Technology, Group Research and Technology, Kuala Lumpur, MalaysiaSeismic imaging and inversion become extremely challenging when dealing with salt structures. Conventional state-of-the-art full-waveform inversion (FWI) fails to recover those features in areas where salt is present. A widely used solution in industry, however, involves substantial human interpretation. In this study, a regularized isotropic full-waveform inversion that penalizes the velocity drops in depth is introduced to recover the top parts of salt bodies. Then, an automatic salt flooding is applied to reconstruct deeper parts of the salt. Finally, in order to improve the accuracy of the inverted model, which is strongly affected by anisotropy, an anisotropic FWI is used to update the velocity model. We tested the approach on both synthetic and field datasets. Our FWI results revealed satisfying salt recovery as well as detailed velocity features in areas close to salt bodies.https://www.frontiersin.org/articles/10.3389/feart.2023.1164975/fullfull-waveform inversionTV regularizationautomatic salt floodinganisotropysalt dome |
| spellingShingle | Junxiao Li Herurisa Rusmanugroho Mahesh Kalita Kefeng Xin Farah Syazana Dzulkefli 3D anisotropic full-waveform inversion for complex salt provinces Frontiers in Earth Science full-waveform inversion TV regularization automatic salt flooding anisotropy salt dome |
| title | 3D anisotropic full-waveform inversion for complex salt provinces |
| title_full | 3D anisotropic full-waveform inversion for complex salt provinces |
| title_fullStr | 3D anisotropic full-waveform inversion for complex salt provinces |
| title_full_unstemmed | 3D anisotropic full-waveform inversion for complex salt provinces |
| title_short | 3D anisotropic full-waveform inversion for complex salt provinces |
| title_sort | 3d anisotropic full waveform inversion for complex salt provinces |
| topic | full-waveform inversion TV regularization automatic salt flooding anisotropy salt dome |
| url | https://www.frontiersin.org/articles/10.3389/feart.2023.1164975/full |
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