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 …

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

N Wang, G Xing, 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 …

Anisotropic attenuation compensated reverse time migration of pure qP-wave in transversely isotropic attenuating media

Z Qiao, T Chen, C Sun - Surveys in Geophysics, 2022 - Springer
The absorption (anelastic attenuation) and anisotropy properties of subsurface media jointly
affect the seismic wave propagation and the quality of migration imaging. Anisotropic …

Modeling Frequency‐Independent Q Viscoacoustic Wave Propagation in Heterogeneous Media

G Xing, T Zhu - Journal of Geophysical Research: Solid Earth, 2019 - Wiley Online Library
Quantifying the attenuation of seismic waves propagating in the Earth interior is critical to
study the subsurface structure. Previous studies have proposed fractional anelastic wave …

Modeling viscoacoustic wave propagation using a new spatial variable-order fractional Laplacian wave equation

X Mu, J Huang, L Wen, S Zhuang - Geophysics, 2021 - library.seg.org
We have developed a new time-domain viscoacoustic wave equation for simulating wave
propagation in anelastic media. The new wave equation is derived by inserting the complex …

Accelerating full-waveform inversion with attenuation compensation

Z Xue, J Sun, S Fomel, T Zhu - Geophysics, 2018 - library.seg.org
The calculation of the gradient in full-waveform inversion (FWI) usually involves
crosscorrelating the forward-propagated source wavefield and the back-propagated data …

Imaging conditions for elastic reverse time migration

W Zhang, Y Shi - Geophysics, 2019 - library.seg.org
Elastic reverse time migration (RTM) has the ability to retrieve accurately migrated images of
complex subsurface structures by imaging the multicomponent seismic data. However, the …

Viscoacoustic reverse time migration using a time-domain complex-valued wave equation

J Yang, H Zhu - Geophysics, 2018 - library.seg.org
During seismic wave propagation, intrinsic attenuation inside the earth gives rise to
amplitude loss and phase dispersion. Without appropriate correction strategies in migration …

Compensating Q effects in viscoelastic media by adjoint-based least-squares reverse time migration

P Guo, GA McMechan - Geophysics, 2018 - library.seg.org
Low values of P-and S-wave quality factors Q p and Q s result in strong intrinsic seismic
attenuation in seismic modeling and imaging. We use a linearized waveform inversion …

Numerical simulation of seismic wave propagation in viscoelastic-anisotropic media using frequency-independent Q wave equation

T Zhu - Geophysics, 2017 - library.seg.org
Seismic anisotropy is the fundamental phenomenon of wave propagation in the earth's
interior. Numerical modeling of wave behavior is critical for exploration and global …