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 …
Elastodynamic Green's function retrieval through single-sided Marchenko inverse scattering
The solution of the inverse scattering problem for the one-dimensional Schrödinger equation
is given by the Marchenko equation. Recently, a Marchenko-type equation has been derived …
is given by the Marchenko equation. Recently, a Marchenko-type equation has been derived …
Elastic seismic imaging enhancement of sparse 4C ocean-bottom node data using deep learning
S Cheng, X Shi, W Mao, TA Alkhalifah… - … on Geoscience and …, 2023 - ieeexplore.ieee.org
The ocean-bottom node (OBN) seismic acquisition system is designed to gather high-fidelity,
wide-azimuth, and long-offset four-component (4C) data, which includes shear waves and …
wide-azimuth, and long-offset four-component (4C) data, which includes shear waves and …
Elastic reverse time migration using acoustic propagators
Elastic wave imaging has been a significant challenge in the exploration industry due to the
complexities in wave physics and numerical implementation. We have separated the …
complexities in wave physics and numerical implementation. We have separated the …
Vector-acoustic reverse time migration of Volve ocean-bottom cable data set without up/down decomposed wavefields
Methods for wavefield injection are commonly used to extrapolate seismic data in reverse
time migration (RTM). Injecting a single component of the acoustic field, for example …
time migration (RTM). Injecting a single component of the acoustic field, for example …
Elastic reverse time migration based on first-order velocity-dilatation-rotation equations using the optical flow vector
C Xie, J Wang, P Song, J Tan, Z Liu, Y Wang - Geophysics, 2024 - library.seg.org
The determination of the P-and S-wave propagation directions is crucial for wavefield
decomposition, polarity reversal correction, and noise suppression in elastic reverse time …
decomposition, polarity reversal correction, and noise suppression in elastic reverse time …
Elastic internal multiple analysis and attenuation using Marchenko and interferometric methods
Conventional seismic processing aims to create data that contain only primary reflections,
whereas real seismic recordings also contain multiples. As such, it is desirable to predict …
whereas real seismic recordings also contain multiples. As such, it is desirable to predict …
Exact wavefield reconstruction on finite-difference grids with minimal memory requirements
M Vasmel, JOA Robertsson - Geophysics, 2016 - pubs.geoscienceworld.org
Wavefield injection in finite-difference (FD) grids can be described by the method of multiple
point sources. The method teaches how synthetically generated wavefields and wavefield …
point sources. The method teaches how synthetically generated wavefields and wavefield …
Acoustic-elastic coupled equation for ocean bottom seismic data elastic reverse time migration
P Yu, J Geng, X Li, C Wang - Geophysics, 2016 - pubs.geoscienceworld.org
Conventionally, multicomponent geophones used to record the elastic wavefields in the
solid seabed are necessary for ocean bottom seismic (OBS) data elastic reverse time …
solid seabed are necessary for ocean bottom seismic (OBS) data elastic reverse time …
Isotropic elastic wavefield imaging using the energy norm
D Rocha, N Tanushev, P Sava - Geophysics, 2016 - pubs.geoscienceworld.org
From the elastic-wave equation and the energy conservation principle, we have derived an
energy norm that is applicable to imaging with elastic wavefields. Extending the concept of …
energy norm that is applicable to imaging with elastic wavefields. Extending the concept of …