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Waveform inversion by one-way wavefield extrapolationNormal access

Author: J. Shragge
Event name: 70th EAGE Conference and Exhibition - Workshops and Fieldtrips
Session: WO11: Full Waveform Inversion - Current Status and Perspectives
Publication date: 09 June 2008
DOI: 10.3997/2214-4609.201405074
Organisations: SPE, EAGE
Language: English
Info: Extended abstract, PDF ( 912.49Kb )
Price: € 20

Summary:
One-way Riemannian wavefield extrapolation (RWE) on computational
meshes conforming to the direction of turning-wave
propagation is presented as an alternative forward modeling
procedure for waveform inversion. Forward modeling tests
demonstrate that the RWE approach may be a sufficiently accurate
approximation for calculating the wavefield phases important
for early-arrival waveform inversion. Initial results indicate
that RWE waveforms are well matched at wide offsets to
finite-difference data, and can be used in a waveform inversion
scheme to invert synthetic data for 1D velocity perturbations.


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