FWI Imaging
Monday 5 June 2023 | Room Lehar 1
Convenors
- Fabio Mancini (Blue Ocean Seismic)
- Nabil Masmoudi (CGG)
- James Cooper (CGG)
- Stephane Operto (Université de Nice, Sophia Antipolis)
- Paul Williamson (TotalEnergies)
Description
In recent years, Full Waveform Inversion (FWI) has evolved beyond a tool for velocity model building, into a viable alternative to conventional subsurface imaging. Modern implementations of FWI utilize more of the seismic wavefield, over a broader bandwidth, to derive images of the subsurface with improved illumination and resolution when compared to traditional imaging approaches. Underpinning the success of these methodologies is a rich and rapidly growing area of research, from which a multitude of technologies has emerged, ranging from alternative objective functions to new wave equation parameterizations. The objective of this workshop is to review the latest developments in these areas, highlight successful approaches, such as FWI Imaging (also known as FWI-derived reflectivity), and to discuss remaining challenges. We will also seek to understand the connection between the FWI-based methods and related strategies such as Least Squares Reverse Time Migration (LSRTM).
Participant Profile
Researchers and practitioners interested in seismic imaging and full waveform inversion
Workshop Programme
| Time | Activity |
|---|---|
| 09:30 | Welcome and introduction |
| 09:35 | Can FWI replace everything? – Mike Warner (S-Cube & Imperial College London) |
| 10:00 | Full waveform inversion derived pre-stack reflectivity approach – Denes Vigh (SLB) |
| 10:15 | On the quest to achieve AVA attributes: Has FWI Imaging superseded the conventional workflow? – James McLeman (DUG) |
| 10:30 | Leveraging recent developments in wavefield focusing and redatuming in full-waveform seismic imaging – Ivan Vasconcelos (Utrecht University) |
| 10:45 | QA & Discussion |
| 11:10 | Coffee Break |
| 11:30 | The end of seismic migration? – Eric Verschuur (Delft University of Technology) |
| 11:45 | Processing/migration life support: advances and challenges with FWI imaging – Rodney Johnston (BP) |
| 12:00 | FWI Imaging: the future or merely derivative? – Simon Baldock (TGS) |
| 12:15 | The role of FWI Imaging in compensating for transmission loss – James Cooper (CGG) |
| 12:30 | QA & Discussion |
| 12:55 | Lunch |
| 14:00 | Data and parameter hierarchization in multi-parameter waveform inversion – René-Édouard Plessix (Shell Global Solutions International) |
| 14:15 | Full waveform inversion of broadband data: moving to multi-parameter inversion with structure-preserving anisotropic diffusion filters – Ludovic Métivier (CNRS Univ. Grenoble Alpes / SEISCOPE) |
| 14:30 | Estimating reliable earth properties from simultaneous inversion – N. Chemingui (PGS) |
| 14:45 | Q&A Discussion |
| 15:05 | Open Panel Discussion and Concluding Remarks |
| 15:25 | End of the Workshop |
