Viscoelastic reverse time migration with attenuation compensation

T Zhu, J Sun - Geophysics, 2017 - library.seg.org
We have developed a theory of viscoelastic reverse time migration (RTM). The main feature
of viscoelastic RTM is a compensation for P-and S-wave attenuation effects in seismic …

Separation of absorption and dispersion effects in Q-compensated viscoelastic RTM

P Guo, GA McMechan - SEG International Exposition and Annual …, 2015 - onepetro.org
Without considering intrinsic attenuation, reverse time migration (RTM) in lossy media may
produce unfocused migration images, because of the amplitude loss and velocity dispersion …

A stable approach for Q-compensated viscoelastic reverse time migration using excitation amplitude imaging condition

X Zhao, H Zhou, Y Wang, H Chen, Z Zhou, P Sun… - Geophysics, 2018 - library.seg.org
The earth Q filtering causes poor illumination of the subsurface. Compensating for the
attenuated amplitude and distorted phase is crucial during elastic reverse time migration …

Stable attenuation compensation in reverse-time migration

J Sun, T Zhu - SEG Technical Program Expanded Abstracts 2015, 2015 - library.seg.org
Attenuation in seismic wave propagation is a common cause for poor illumination of
subsurface structures. Attempts to compensate for amplitude loss in seismic images by …

Implementation aspects of attenuation compensation in reverse‐time migration

T Zhu - Geophysical Prospecting, 2016 - earthdoc.org
Attenuation compensation in reverse‐time migration has been shown to improve the
resolution of the seismic image. In this paper, three essential aspects of implementing …

Viscoacoustic reverse time migration with a robust space-wavenumber domain attenuation compensation operator

J Yang, J Huang, H Zhu, Z Li, N Dai - Geophysics, 2021 - library.seg.org
Intrinsic attenuation gives rise to phase dispersion and amplitude loss during seismic wave
propagation. Not correcting these effects in seismic imaging can result in inaccurate reflector …

Obliquity-correction imaging condition for reverse time migration

JC Costa, FA Silva Neto, MR Alcantara, J Schleicher… - Geophysics, 2009 - library.seg.org
The quality of seismic images obtained by reverse time migration (RTM) strongly depends
on the imaging condition. We propose a new imaging condition that is motivated by …

Frequency-domain reverse-time migration with attenuation compensation

X Ma, H Li, G Li, Y Li - IEEE Transactions on Geoscience and …, 2023 - ieeexplore.ieee.org
Seismic wave suffers from amplitude attenuation and phase distortion when propagating in
the attenuating media, thus reverse time migration (RTM) for viscous media should take the …

Comparison of two viscoacoustic propagators for -compensated reverse time migration

P Guo, GA McMechan, H Guan - Geophysics, 2016 - library.seg.org
Without considering intrinsic attenuation, reverse time migration (RTM) of data from lossy
media produces smeared migration images because of the Q effects (amplitude loss and …

Strategies for stable attenuation compensation in reverse‐time migration

J Sun, T Zhu - Geophysical Prospecting, 2018 - earthdoc.org
Attenuation in seismic wave propagation is a common cause for poor illumination of
subsurface structures. Attempts to compensate for amplitude loss in seismic images by …