BEN HADJ ALI , H.

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...

International audience

International audience

International audience

Three-dimensional quantitative seismic imaging in complex environments such those involving deepwater, thrust belts, sub-salt and sub-basalt structures is one of the main challenges of seismic exploration such that hydrocarbon exploitation. We present a 3D frequency-domain full waveform tomography (FWT) algorithm suited for wide-aperture...

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We present one of the first attempt at implementing a massively parallel frequency-domain full-waveform inversion algorithm for imaging 3D acoustic media. The inverse method is based on a classic steepest-descent algorithm. The algorithm was designed so that one or several frequencies are inverted at a time. Wave propagation modeling, a key...

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Many scientific applications require accurate modeling of seismic wave propagation in complex media. These objectives can include fundamental understanding of seismic wave propagation of the Earth on a global scale, including fluid envelopes, mitigation of seismic risk with better quantitative estimates of seismic hazard, and improved...