Reverse time migration: A prospect of seismic imaging methodology
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 …
using recorded seismic waveforms. The practice in exploration seismology has long …
Propagating seismic waves in VTI attenuating media using fractional viscoelastic wave equation
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 …
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 …
affect the seismic wave propagation and the quality of migration imaging. Anisotropic …
Modeling Frequency‐Independent Q Viscoacoustic Wave Propagation in Heterogeneous Media
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 …
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
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 …
propagation in anelastic media. The new wave equation is derived by inserting the complex …
Accelerating full-waveform inversion with attenuation compensation
The calculation of the gradient in full-waveform inversion (FWI) usually involves
crosscorrelating the forward-propagated source wavefield and the back-propagated data …
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 …
complex subsurface structures by imaging the multicomponent seismic data. However, the …
Viscoacoustic reverse time migration using a time-domain complex-valued wave equation
During seismic wave propagation, intrinsic attenuation inside the earth gives rise to
amplitude loss and phase dispersion. Without appropriate correction strategies in migration …
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 …
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 …
interior. Numerical modeling of wave behavior is critical for exploration and global …