Improving full-waveform inversion by wavefield reconstruction with the alternating direction method of multipliers
Full-waveform inversion (FWI) is an iterative nonlinear waveform matching procedure
subject to wave-equation constraint. FWI is highly nonlinear when the wave-equation …
subject to wave-equation constraint. FWI is highly nonlinear when the wave-equation …
Extended-space full-waveform inversion in the time domain with the augmented Lagrangian method
The search space of full-waveform inversion (FWI) can be extended via a relaxation of the
wave equation to increase the linear regime of the inversion. This wave-equation relaxation …
wave equation to increase the linear regime of the inversion. This wave-equation relaxation …
Implementing bound constraints and total-variation regularization in extended full-waveform inversion with the alternating direction method of multiplier: Application to …
Full-waveform inversion (FWI) is a waveform matching procedure, which can provide a
subsurface model with a wavelength-scale resolution. However, this high resolution makes …
subsurface model with a wavelength-scale resolution. However, this high resolution makes …
[HTML][HTML] Fluid discrimination incorporating amplitude variation with angle inversion and squirt flow of the fluid
Pre-stack seismic inversion is an important method for fluid identification and reservoir
characterization in exploration geophysics. In this study, an effective fluid factor is initially …
characterization in exploration geophysics. In this study, an effective fluid factor is initially …
Multiplier waveform inversion: A reduced-space full-waveform inversion by the method of multipliers
Full-waveform inversion (FWI) is a nonlinear optimization problem that addresses the
estimation of subsurface model parameters by matching the predicted to the observed …
estimation of subsurface model parameters by matching the predicted to the observed …
Multiparameter wavefield reconstruction inversion for wavespeed and attenuation with bound constraints and total variation regularization
Wavefield reconstruction inversion (WRI) extends the search space of full-waveform
inversion (FWI) by allowing for wave-equation errors during wavefield reconstruction to …
inversion (FWI) by allowing for wave-equation errors during wavefield reconstruction to …
Prestack seismic inversion for elastic parameters using model-data-driven generative adversarial networks
ABSTRACT Model-data-driven (MDD) generative adversarial networks (GANs) using
prestack seismic data to estimate elastic parameters are proposed. First, by traverse …
prestack seismic data to estimate elastic parameters are proposed. First, by traverse …
Complex-valued imaging with total variation regularization: an application to full-waveform inversion in visco-acoustic media
Full-waveform inversion (FWI) is a nonlinear PDE constrained optimization problem which
seeks to estimate the constitutive parameters of a medium by fitting waveforms. Among …
seeks to estimate the constitutive parameters of a medium by fitting waveforms. Among …
Fast spatial structure constrained 3D prestack inversion based on the Sylvester equation
Y Yang, X Yin, K Li - Geophysics, 2022 - library.seg.org
Structurally constrained inversion (SCI) is a multitrace processing technology that can
effectively reduce the complexity of prestack seismic inversion caused by complex geology …
effectively reduce the complexity of prestack seismic inversion caused by complex geology …
Accelerating the multi-parameter least-squares reverse time migration using an appropriate preconditioner
M Farshad, H Chauris - Computational Geosciences, 2021 - Springer
Least-squares reverse time migration has proven to be the state-of-the-art for linear imaging
technique of complex subsurface structures. Assuming a variable-density acoustic medium …
technique of complex subsurface structures. Assuming a variable-density acoustic medium …