Anisotropic 3D full-waveform inversion

M Warner, A Ratcliffe, T Nangoo, J Morgan, A Umpleby… - Geophysics, 2013 - library.seg.org
We have developed and implemented a robust and practical scheme for anisotropic 3D
acoustic full-waveform inversion (FWI). We demonstrate this scheme on a field data set …

Seismic full-waveform inversion using deep learning tools and techniques

A Richardson - arXiv preprint arXiv:1801.07232, 2018 - arxiv.org
I demonstrate that the conventional seismic full-waveform inversion algorithm can be
constructed as a recurrent neural network and so implemented using deep learning software …

Simultaneous inversion of the background velocity and the perturbation in full-waveform inversion

Z Wu, T Alkhalifah - Geophysics, 2015 - library.seg.org
The gradient of standard full-waveform inversion (FWI) attempts to map the residuals in the
data to perturbations in the model. Such perturbations may include smooth background …

The collaborative seismic earth model: generation 1

A Fichtner, DP van Herwaarden… - Geophysical …, 2018 - Wiley Online Library
We present a general concept for evolutionary, collaborative, multiscale inversion of
geophysical data, specifically applied to the construction of a first‐generation Collaborative …

3D elastic full-waveform inversion using P-wave excitation amplitude: Application to ocean bottom cable field data

JW Oh, M Kalita, T Alkhalifah - Geophysics, 2018 - library.seg.org
We have developed an efficient elastic full-waveform inversion (FWI) based on the P-wave
excitation amplitude (maximum energy arrival) approximation in the source wavefields …

Multiparameter waveform inversion of a large wide-azimuth low-frequency land data set in Oman

A Stopin, RÉ Plessix, S Al Abri - Geophysics, 2014 - library.seg.org
Several 3D seismic acoustic full-waveform inversions (FWIs) of offshore data sets have been
reported over the last five years. A successful updating of the long-to-intermediate …

Plane-wave least-squares reverse time migration with a preconditioned stochastic conjugate gradient method

C Li, J Huang, Z Li, R Wang - Geophysics, 2018 - library.seg.org
This study derives a preconditioned stochastic conjugate gradient (CG) method that
combines stochastic optimization with singular spectrum analysis (SSA) denoising to …

Automatic velocity analysis with reverse-time migration

WW Weibull, B Arntsen - Geophysics, 2013 - library.seg.org
We apply a method to automatically estimate the background velocities using reverse-time
migration. The method uses a combination of differential semblance and similarity-index …

Refraction FWI of a circular shot OBN acquisition in the Brazilian pre-salt region

SLEF da Silva, FT Costa, A Karsou, A de Souza… - arXiv preprint arXiv …, 2024 - arxiv.org
We develop a workflow based on full-waveform inversion (FWI) to estimate P-wave
velocities in a deepwater Brazilian pre-salt field using the recently introduced circular shot …

Research note: Application of refraction full‐waveform inversion of ocean bottom node data using a squared‐slowness model parameterization

SL da Silva, F Costa, A Karsou, F Capuzzo… - Geophysical …, 2024 - earthdoc.org
Full‐waveform inversion is a wave equation–based imaging technique for obtaining
subsurface model parameters by matching modelled with field data. Full‐waveform …