Workshop 12

Workshop 12

FWI Imaging

Date: Monday 5 June 2023

 

Convenors

  • Fabio Mancini (Blue Ocean Seismic)
  • Nabil Masmoudi (CGG)
  • James Cooper (CGG)
  • Stephane Operto (UniversitĂ© 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

TimeActivity
09:30Welcome and introduction
09:35Can FWI replace everything? – Mike Warner (S-Cube & Imperial College London)
10:00Full waveform inversion derived pre-stack reflectivity approach – Denes Vigh (SLB)
10:15On the quest to achieve AVA attributes: Has FWI Imaging superseded the conventional workflow? – James McLeman (DUG)
10:30Leveraging recent developments in wavefield focusing and redatuming in full-waveform seismic imaging – Ivan Vasconcelos (Utrecht University)
10:45QA & Discussion
11:10Coffee Break
11:30The end of seismic migration? – Eric Verschuur (Delft University of Technology)
11:45Processing/migration life support: advances and challenges with FWI imaging – Rodney Johnston (BP)
12:00FWI Imaging: the future or merely derivative? – Simon Baldock ( TGS)
12:15The role of FWI Imaging in compensating for transmission loss – James Cooper (CGG)
12:30QA & Discussion
12:55Lunch
14:00Data and parameter hierarchization in multi-parameter waveform inversion – René-Édouard Plessix (Shell Global Solutions International)
14:15Full waveform inversion of broadband data: moving to multi-parameter inversion with structure-preserving anisotropic diffusion filters – Ludovic Métivier (CNRS Univ. Grenoble Alpes / SEISCOPE)
14:30Estimating reliable earth properties from simultaneous inversion – Yang Yang (PGS)
14:45Can we use acoustic FWI imaging for reservoir characterization? – Mohammad Shahraeeni (TotalEnergies)
15:00QA & Discussion
15:25Concluding Remarks
15:30End of the Workshop