Top PDF Seismic imaging˸ strategies for visco-acoustic full waveform inversion
Seismic imaging˸ strategies for visco-acoustic full waveform inversion
... Figure 1.4: Intrinsic attenuation effects for one seismic trace in time domain left and normalized spectrum in frequency domain right, the solid red line is the acoustic wave, and the so[r] ...
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Two-dimensional elastic full waveform inversion using Born and Rytov formulations in the frequency domain
... the full elastic waveform inversion in the frequency domain in a 2-D ...allows imaging of two physical seismic parameters, using vertical and horizontal field ...the full elastic ...
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Increasing the robustness and applicability of full-waveform inversion: An optimal transport distance strategy
... comparisons. Seismic imaging practitioners have used over year and year representations of the seismic data in panels allowing to identify clearly the type of waves and the seismic events ...
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Two-dimensional near-surface seismic imaging with surface waves : alternative methodology for waveform inversion
... essential for improving seismic imaging of both shallow and deeper exploration ...tional seismic characterisation is done by analysing body waves. For example, first-arrival traveltime ...
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Two-dimensional elastic full waveform inversion using Born and Rytov formulations in the frequency domain
... illumination, seismic imaging, waveform ...Quantitative imaging using full wave equation has been achieved through the use of the adjoint formulation problem for seismic ...
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Local full-waveform inversion using distant data
... [1] Masson, Yder, Paul Cupillard, Yann Capdeville, and Barbara Romanowicz. On the numerical im- ple- mentation of time-reversal mirrors for tomographic imaging. Geophysical Journal International, 2013. [2] ...
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Full Waveform Inversion and the truncated Newton method
... Abstract. Full Waveform Inversion (FWI) is a powerful method for reconstructing subsurface parameters from local measurements of the seismic ...methods for the resolution of FWI ...
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The potential of time-lapse GPR full-waveform inversion as high resolution imaging technique for salt and ethanol transport
... results for an ethanol tracer ...model strategies for time-lapse data were tested to investigate which SM provides the most accurate plume ...that for a scenario with small ε r and σ changes ...
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Efficient 3-D frequency-domain mono-parameter full-waveform inversion of ocean-bottom cable data: application to Valhall in the visco-acoustic vertical transverse isotropic approximation
... ocean-bottom seismic data in the visco-acoustic VTI ...allow for the computationally-efficient processing of a large number of sources and receivers with limited computational resources thanks ...
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Multi-scale imaging of complex structures from multi-fold wide-aperture seismic data by frequency-domain full-waveform tomography: application to a thrust belt
... of seismic multichannel reflection data collected along the investigated wide- aperture ...used for the wide-aperture ...four inversion runs and was parametrized dur- ing the last run (which involves ...
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Multiscale seismic imaging of the eastern Nankai trough by full waveform inversion
... [ 10 ] A thickened oceanic crustal structure presently colliding the backstop is visible in our images (Figures 3 and 4). Intra-oceanic shortening is made necessary here as a transition between domains of distinct ...
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The truncated Newton method for Full Waveform Inversion
... Introduction Full Waveform Inversion (FWI) computes quantitative estimates of the subsurface parameters, such as the bulk wave velocity, the shear wave velocity, or the rock ...and seismic ...
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Compound Regularization of Full-Waveform Inversion for Imaging Piecewise Media
... of Full-waveform Inversion for Imaging Piecewise Media Hossein ...Abstract—Full waveform inversion (FWI) is an iterative nonlin- ear waveform matching ...
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Waveform inversion through MBTT formulation
... L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d’enseignemen[r] ...
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Stellar acoustic radii, mean densities, and ages from seismic inversion techniques
... context, seismic inversion techniques become partic- ularly interesting since they are able to invert the differences be- tween observed and theoretical frequencies and translate them into appropriate ...
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Combined traveltime and frequency-domain seismic waveform inversion: : a case study on multi-offset ultrasonic data
... 10. Waveform inversion ...frequency-domain waveform tomography, the usual way to recover the features of a model is to reconstruct wavenumbers in an increasing order (Forgues et ...by ...
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Crustal seismic imaging from multifold ocean bottom seismometer data by frequency domain full waveform tomography: Application to the eastern Nankai trough
... aliasing. For a wide-aperture experiment, the fold may be defined as L/2DO where the OBS spacing and the range of offsets over which a reflection is observed in an OBS gather are denoted by DO and L, ...
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Waveform inversion based on wavefield decomposition
... 1.2.3 Current limitations of FWI FWI is capable of potentially imaging complex structures. However, it presents several limitations [ Virieux and Operto, 2009 ]: ∙ Local minima. The objective function of FWI is ...
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Application of full waveform acoustic logging data to the estimation of reservoir permeability
... Development of borehole geophysics has recently focused on reservoir characterization. Within this effort, extensive full waveform acoustic surveys have demonstrated a [r] ...
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Application of Full Waveform Acoustic Logging Data to the Estimation of Reservoir Permeability
... incident Stoneley wave pressure in the borehole transmitted Stoneley wave pressure in the borehole reflected Stone ley wave pressure in the borehole rate of fluid flow in the porous medi[r] ...
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