1887
Volume 43, Issue 12
  • ISSN: 0263-5046
  • E-ISSN: 1365-2397

Abstract

Abstract

Full Waveform Inversion (FWI) has become a standard method for generating high-resolution subsurface velocity models. Advances in FWI now allow the use of the full recorded wavefield, including diving waves, primary reflections, and multiples, leading to improved velocity updates even below the maximum penetration depth of diving waves. These detailed velocity models enhance seismic imaging and provide valuable input for Quantitative Interpretation (QI), which is essential for reservoir characterisation.

We present here two case studies that illustrate the benefits of FWI for QI purposes. The first study, offshore Norway, applies elastic FWI to handle strong velocity contrasts beneath thick chalk layers, demonstrating how high-resolution velocity and seismic images improve fault detection and stratigraphic amplitude-versus-angle (AVA) inversion. The second case study, onshore Oman, showcases recent advances in land FWI and FWI Imaging, leading to sharper fault imaging and better stratigraphic AVA inversion when combining high-frequency velocity models with improved seismic images.

These two case studies highlight the importance of retrieving velocity models within the same frequency bandwidth as the seismic images to accurately capture thin geological features. They also demonstrate the added value of using FWI-derived velocity models to enhance subsequent stratigraphic AVA inversion.

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2025-12-01
2025-12-14
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References

  1. Aziez, Y., Colnard, O., Souvannavong, V. and Tatat, J. [2024]. Optimized inversion for Density and P- wave Velocity, for better fluid discrimination in Caran remobilized in-situ sand deposit, Central North Sea. 3rd EAGE Conference on Seismic Inversion, Extended Abstracts.
    [Google Scholar]
  2. Bardainne, T. [2018]. Joint inversion of refracted P-waves, surface waves and reflectivity. 80th EAGE Annual Conference & Exhibition, Extended Abstracts, We-K-02.
    [Google Scholar]
  3. Cao, J., Sedova, A., Reinier, M., Donno, D. and Lambaré, G. [2025]. Towards high-resolution land elastic FWI?86th EAGE Annual Conference & Exhibition, Extended Abstracts.
    [Google Scholar]
  4. Coulon, J.-P., Lafet, Y., Deschizeaux, B., Doyen, P.M. and Duboz, P. [2006]. Stratigraphic elastic inversion for seismic lithology discrimination in a turbiditic reservoir. 76th SEG Annual International Meeting, Expanded Abstracts, 2092–2096.
    [Google Scholar]
  5. Culianez, G. [2025]. When onshore FWI imaging delineates unseeable outcropping salt body: a case study from Sultanate of Oman. 86th EAGE Annual Conference & Exhibition, Extended Abstracts.
    [Google Scholar]
  6. Espin, I., Michou, L., Salaun, N., Donno, D., Wergeland, Ø., Gotliebsen, K., Carotti, D., Mispel, J. and Høgden, S. [2024]. Angle-restricted FWI for shallow reservoir characterisation. First Break, 42(12), pp.31–36.
    [Google Scholar]
  7. GuoY. and Aziz, A. [2024]. New geological understanding with land FWI Imaging, a Sultanate of Oman case study. 85th EAGE Annual Conference & Exhibition, Extended Abstracts.
    [Google Scholar]
  8. Guo, Y., Aziz, A., Sedova, A., Reinier, M., Donno, D., Lambaré, G. and Carotti, D. [2025]. Unlocking onshore imaging challenges with FWI: Case studies from the Sultanate of Oman. The Leading Edge, 44(1), pp.22–32.
    [Google Scholar]
  9. Le Meur, D., Donno, D., Courbin, J., Solyga, D. and Prescott, A. [2020]. Retrieving ultra-low frequency surface waves from land blended continuous recording data. 90th SEG Annual International Meeting, Expanded Abstracts.
    [Google Scholar]
  10. Lu, R. [2016]. Revealing overburden and reservoir complexity with high-resolution FWI. 86th SEG Annual International Meeting, Expanded Abstracts, 1242–1246.
    [Google Scholar]
  11. Masclet, S., Bardainne, T., Massart, V., Prigent, H., Le Meur, D. and Song, H. [2019]. Near surface characterization in Southern Oman: Multi-Wave Inversion guided by Machine Learning. 80th EAGE Annual Conference & Exhibition, Extended Abstracts.
    [Google Scholar]
  12. Masclet, S., Bouquard, G. and Prigent, H. [2021]. Multi-wave and full-waveform inversion in southern Oman. 82nd EAGE Annual Conference & Exhibition, Extended Abstracts.
    [Google Scholar]
  13. Masclet, S., Pintus, A., Wright, A., Montagud, A., Beigbeder, C. and Cao, J. [2025]. Reservoir-based Elastic Full-waveform Inversion: Maximizing Streamer Data Potential in Exploration. 86th EAGE Annual Conference & Exhibition, Extended Abstracts.
    [Google Scholar]
  14. Reinier, M., Pellerin, S., Sedova, A., Dupinet, C., Afonso Monteiro, A., Aldairi, A., Mitschler, J.-B., Retailleau, M., Al Haddabi, A., Al Adawi, R., Blymyer, D., Li, T., Urazimanova, A., Warren, G. and Millis, K. [2025]. High-resolution land FWI under dunes in the Sultanate of Oman: taking advantage of continuous recordings. 86th EAGE Annual Conference & Exhibition, Extended Abstracts.
    [Google Scholar]
  15. Rest, C., Cichy, K. and Ratcliffe, A. [2025]. High-Resolution Shear-Wave Velocity Model Building with Elastic Full-Waveform Inversion of Multi-Component Ocean-Bottom Data. 86th EAGE Annual Conference & Exhibition, Extended Abstracts.
    [Google Scholar]
  16. Russell, B.H., Hedlin, K. and Hilterman, F.J. [2003]. Fluid-property discrimination with AVO: a Biot–Gassmann perspective. Geophysics, 68, 29–39
    [Google Scholar]
  17. Salaun, N., Reinier, M., Espin, I. and Gigou, G. [2021]. FWI velocity and imaging: A case study in the Johan Castberg area. 82nd EAGE Annual Conference & Exhibition, Extended Abstracts.
    [Google Scholar]
  18. Shen, X., Jiang, L., Dellinger, J., Brenders, A., Kumar, C., James, M., Etgen, J., Meaux, D., Walters, R. and Abdullayev, N. [2018]. High resolution full-waveform inversion for structural imaging in exploration. 87th SEG Annual International Meeting, Expanded Abstracts, 1098–1102.
    [Google Scholar]
  19. Xiao, B., Ratcliffe, A., Latter, T., Yie, X. and Wang, M. [2018]. Inverting for near-surface absorption with full-waveform inversion: a case study from the North Viking Graben in the northern North Sea. 80th EAGE Annual Conference and Exhibition, Extended Abstracts.
    [Google Scholar]
  20. Zhang, Z., Mei, J., Lin, F., Huang, R. and Wang, P. [2018]. Correcting for salt misinterpretation with full-waveform inversion. 88th SEG Annual International Meeting, Expanded Abstracts, 1143–1147.
    [Google Scholar]
  21. Zhang, Z., Wu, Z., Wei, Z., Mei, J., Huang, R. and Wang, P. [2020]. FWI Imaging: Full-wavefield imaging through full-waveform inversion. 90th SEG Annual International Meeting, Expanded Abstracts, 656–660.
    [Google Scholar]
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  • Article Type: Research Article

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