Workshop 8
Elastic FWI for Model Building Monday, June 2nd |
Convenors
- Bertrand Duquet (TotalEnergies)
- Gilles Lambaré (Viridien)
- René-Edouard Plessix (Shell)
Description
With the constant increase of HPC capabilities, elastic FWI has rapidly progressed over the last decade and is today used at an industrial scale. Elastic FWI, however, covers different levels of complexity: from modeling and inverting the P waves elastically with a mono-parameter inversion to modeling and inverting in a multi-parameter inversion scheme waveforms considered as coherent noise in classical acoustic processing flows (mode conversions, surface waves, …). The complexity level, and then computing cost, depend on the objective to achieve and the type of seismic acquisitions considered (land or marine acquisitions). During this workshop, we propose to focus on assessing the added value of elastic versus acoustic FWI in terms of velocity model building and imaging for on-shore and off-shore data.
Participant Profile
Researchers, practitioners, students, and decision makers interested in better understanding the value and challenges of elastic FWI.
Workshop Programme
Coming Soon!
| Time | Activity |
|---|---|
| 09:00 | Workshop Introduction |
| Session 1 Off-shore Case studies | |
| 09:10 | Elastic FWI a step forward for improved subsalt imaging in Gulf of Guinea. - Bertrand DUQUET (TotalEnergies) |
| 09:30 | Elastic FWI with sparse low-frequency, long-offset data. - René-Edouard PLESSIX (Shell) |
| 09:50 | Challenges and benefits of elastic FWI in the pre-salt of Santos basin, Brazil. Bruno DIAS (Petrobras) |
| 10:10 | Recent examples from elastic FWI: challenges and opportunities. Ørjan PEDERSEN (Aker BP) |
| 10:30 | Coffee break |
| Session 2 Multi-parameter and multi-component | |
| 10:45 | Elastic FWI: are we leveraging the potential? - Nabil MASMOUDI (BP) |
| 11:05 | Advancing elastic full-waveform inversion – from structural interpretation to amplitude analysis. - Xin CHENG (SLB) |
| 11:25 | Advancements in elastic FWI: Advantages of single and multi-parameter elastic approaches compared to acoustic FWI. Carlos CALDERON MACIAS (TGS) |
| 11:45 | Applications of elastic full-waveform inversion on offshore data. - Andrew RATCLIFFE (Viridien) |
| 12:05 | Panel Discussion |
| 12:30 | Lunch break |
| Session 3 On-shore Case Studies | |
| 13:30 | Elastic FWI implementation in Oman onshore data: Developments & Insights. - Moosa JAHDHAMI (PDO) |
| 13:50 | Towards high-resolution land elastic FWI? - Jian CAO (Viridien) |
| 14:10 | Elastic full waveform inversion of seismic ambient noise. - Ludovic METIVIER (Seiscope) |
| Session 4: New aspects | |
| 14:30 | Multiparameter elastic FWI of 4C OBN data with spectral elements: Application to Gorgon. - Stéphane OPERTO (GeoAzur) |
| 14:50 | Variational Bayesian Multiparameter Seismic Inversion with Structural Similarity Constraints - Dias Urozayev (Sintef) |
| 15:10 | Panel and general Discussion |
