Workshop 8: Reflectivity: Why do we still need it when inverting for velocity?
Tracks
Side Activities
| Monday, June 8, 2026 |
| 9:00 AM - 3:00 PM |
| Room 07 |
Details
Full waveform migration has historically ignored reflectivity, which seems natural, as reflectivity, which is essential to the one-way wave equation, doesn’t appear in the two-way wave equation. However, several approaches have emerged, introducing a reflectivity into the two-way formulation. This workshop attempts to explain this by comparing different approaches.
Speaker
Dr Robert Soubaras
Advanced Geophysicist
Aker BP
Reflectivity: what is it and why is it useful?
9:00 AM - 9:30 AM
Dr Eric Verschuur
Associate Professor
Delft University of Technology
Decoupling velocity and reflectivity – is it useful?
9:30 AM - 9:50 AM
Dr Biondo Biondi
Stanford University
Simultaneous waveform inversion and low-frequency data
9:50 AM - 10:10 AM
Prof. Zvi Koren
Technology Fellow
Emerson - AspenTech Houston
A Unified Framework for Anisotropic Velocity Inversion and Angle-Domain Scattering Imaging
10:10 AM - 10:30 AM
Dr Nizar Chemingui
R&D Manager
TGS
Estimating Subsurface Properties from Angle-Dependent Reflectivity with Angle-Domain Multiparameter FWI
11:20 AM - 11:40 AM
Prof. Herve Chauris
Professor
Mines Paris
Efficient seismic subsurface reconstruction by combining macro-velocity models and quantitative migrated images
11:40 AM - 12:00 PM
Dr Ramzi Djebbi
Senior Research Geophysicist
Shearwater GeoServices
Multiparameter Velocity and Impedance Full Waveform Inversion Using the Spectral Element Method
12:00 PM - 12:20 PM
Mr James McLeman
Principal Research Geophysicist
DUG
On the current role and future of reflectivity for understanding elastic attributes with FWI
1:40 PM - 2:00 PM
Mr Gordon Poole
Research Manager
Viridien
Aspects of multi-parameter full-waveform inversion for amplitude-versus-angle reflection characterisation
2:00 PM - 2:20 PM
Ms Olivia Lewis
Earth Modelling Geoscientist
SLB
Strategies for elastic reservoir characterisation with multiparameter FWI in a sub-chalk North Sea setting
2:20 PM - 2:40 PM
