3D Finite-Difference Frequency-Domain Modeling of Acoustic Wave Propagation Using a Massively Parallel Direct Solver

H. Ben Hadj Ali (1) , S. Operto (1) , J. Virieux (1) , P. Amestoy , J.-Y. L'Excellent , L. Giraud

1 GEOAZUR 6526 - Géoazur

C027 3D Finite-Difference Frequency-Domain Modeling of Acoustic Wave Propagation Using a Massively Parallel Direct Solver H. Ben Hadj Ali* (Géosciences Azur - CNRS) S. Operto (Geosciences Azur - CNRS) J. Virieux (Géosciences Azur - UNSA) P. Amestoy (ENSEEIHT-IRIT) J.Y. L'Excellent (ENS Lyon-INRIA) & L. Giraud (ENSEEIHT-IRIT) SUMMARY We present a finite-difference frequency-domain method (FDFD) for 3D modeling of visco-acoustic wave propagation. We propose this method as a tool for frequency-domain full-waveform inversion (FWI) of global offset data. Within such context only few frequencies need to be modeled for multiple shot positions. Frequencydomain modeling reduces to resolution of a large sparse ...

Domaines: Sciences de la Terre

H. Ben Hadj Ali, S. Operto, J. Virieux, P. Amestoy, J.-Y. L'Excellent, et al.. 3D Finite-Difference Frequency-Domain Modeling of Acoustic Wave Propagation Using a Massively Parallel Direct Solver. 69th EAGE Conference & Exhibition, Jun 2007, Londres, United Kingdom. pp.Full Waveform Seismic Inversion. ⟨hal-00408360⟩