Regularized elastic full-waveform inversion using deep learning

Z Zhang, T Alkhalifah - Advances in subsurface data analytics, 2022 - Elsevier
Elastic full-waveform inversion, which aims to match the waveforms of prestack seismic data,
potentially provides more accurate high-resolution reservoir characterization from seismic …

Deformation of crust and upper mantle in central Tibet caused by the northward subduction and slab tearing of the Indian lithosphere: New evidence based on shear …

C Wu, X Tian, T Xu, X Liang, Y Chen, M Taylor… - Earth and Planetary …, 2019 - Elsevier
Shear-wave splitting provides insight into geodynamic processes such as lithospheric
deformation and upper mantle flow. This study presents shear wave splitting parameters …

Adjoint-driven deep-learning seismic full-waveform inversion

W Zhang, J Gao, Z Gao, H Chen - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
Seismic full-waveform inversion (FWI) aims to build high-resolution images of the physical
properties of the subsurface. However, the ill-posedness and nonlinear problems pose a …

Critical zone structure by elastic full waveform inversion of seismic refractions in a sandstone catchment, central Pennsylvania, USA

X Liu, T Zhu, J Hayes - Journal of Geophysical Research: Solid …, 2022 - Wiley Online Library
Seismic imaging provides key information for revealing structures within Earth's critical zone
(CZ) and quantifying subsurface fluid properties. The P‐wave velocity (Vp) models estimated …

Wave-equation Rayleigh-wave dispersion inversion using fundamental and higher modes

ZD Zhang, T Alkhalifah - Geophysics, 2019 - pubs.geoscienceworld.org
Recorded surface waves often provide reasonable estimates of the S-wave velocity in the
near surface. However, existing algorithms are mainly based on the 1D layered-model …

SeisElastic2D: An open-source package for multiparameter full-waveform inversion in isotropic-, anisotropic-and visco-elastic media

W Pan, KA Innanen, Y Wang - Computers & Geosciences, 2020 - Elsevier
Full-waveform inversion (FWI) has emerged as a powerful technique to obtain high-
resolution subsurface elastic properties. However, several complicating features, including …

Local-crosscorrelation elastic full-waveform inversion

Z Zhang, T Alkhalifah - Geophysics, 2019 - library.seg.org
Full-waveform inversion (FWI) in its classic form is a method based on minimizing the L 2
norm of the difference between the observed and simulated seismic waveforms at the …

Deep velocity generator: A plug-in network for FWI enhancement

Y Wang, B Jiang, Z Wei, W Lu - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
Known for its great potential for determining subsurface properties quantitatively, full-
waveform inversion (FWI) is a hot topic in the field of exploration seismology. The success of …

Controlled-order multiple waveform inversion

Y Liu, B He, Y Zheng - Geophysics, 2020 - library.seg.org
Traditional full-waveform inversion (FWI) seeks to find the best model by minimizing an
objective function defined as the difference between the model-predicted and observed data …

[HTML][HTML] 面波频散谱多模式高分辨率成像的多道信号比较法

易佳, 刘伊克, 胡昊, 张郁山, 杨宗奇 - 地球物理学报, 2021 - html.rhhz.net
高分辨率的面波频散谱成像是浅层地震勘探领域基于频散性质反演横波速度结构中的一个关键
步骤. 在天然地震探测领域, 仅利用两个台站记录的线性信号比较法(LSC) …