Seismic wave attenuation and dispersion resulting from wave-induced flow in porous rocks—A review

TM Müller, B Gurevich, M Lebedev - Geophysics, 2010 - library.seg.org
One major cause of elastic wave attenuation in heterogeneous porous media is wave-
induced flow of the pore fluid between heterogeneities of various scales. It is believed that …

An overview of depth imaging in exploration geophysics

J Etgen, SH Gray, Y Zhang - Geophysics, 2009 - library.seg.org
Prestack depth migration is the most glamorous step of seismic processing because it
transforms mere data into an image, and that image is considered to be an accurate …

Solving the frequency-domain acoustic VTI wave equation using physics-informed neural networks

C Song, T Alkhalifah, UB Waheed - Geophysical Journal …, 2021 - academic.oup.com
Frequency-domain wavefield solutions corresponding to the anisotropic acoustic wave
equation can be used to describe the anisotropic nature of the Earth. To solve a frequency …

Propagating seismic waves in VTI attenuating media using fractional viscoelastic wave equation

N Wang, G **ng, T Zhu, H Zhou… - Journal of Geophysical …, 2022 - Wiley Online Library
Seismic velocity and attenuation anisotropy are ubiquitous in the crust and upper mantle,
significantly modulating the characteristics of seismic wave propagation in the Earth's …

A versatile framework to solve the Helmholtz equation using physics-informed neural networks

C Song, T Alkhalifah, UB Waheed - Geophysical Journal …, 2022 - academic.oup.com
Solving the wave equation to obtain wavefield solutions is an essential step in illuminating
the subsurface using seismic imaging and waveform inversion methods. Here, we utilize a …

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 wave extrapolation using lowrank symbol approximation

S Fomel, L Ying, X Song - Geophysical Prospecting, 2013 - earthdoc.org
We consider the problem of constructing a wave extrapolation operator in a variable and
possibly anisotropic medium. Our construction involves Fourier transforms in space …

A stable TTI reverse time migration and its implementation

Y Zhang, H Zhang, G Zhang - Geophysics, 2011 - library.seg.org
Modeling and reverse time migration based on the tilted transverse isotropic (TTI) acoustic
wave equation suffers from instability in media of general inhomogeniety, especially in areas …

Reverse time migration in tilted transversely isotropic (TTI) media

RP Fletcher, X Du, PJ Fowler - Geophysics, 2009 - library.seg.org
Reverse time migration (RTM) exhibits great advantages over other imaging methods
because it is based on computing numerical solutions to a two-way wave equation. It does …

Reverse time migration: A prospect of seismic imaging methodology

HW Zhou, H Hu, Z Zou, Y Wo, O Youn - Earth-science reviews, 2018 - Elsevier
Reverse time migration (RTM) is a seismic imaging method to map the subsurface reflectivity
using recorded seismic waveforms. The practice in exploration seismology has long …