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 …

Elastodynamic Green's function retrieval through single-sided Marchenko inverse scattering

CA da Costa Filho, M Ravasi, A Curtis, GA Meles - Physical Review E, 2014 - APS
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 …

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 …

Elastic reverse time migration using acoustic propagators

Y Elita Li, Y Du, J Yang, A Cheng, X Fang - Geophysics, 2018 - library.seg.org
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 …

Vector-acoustic reverse time migration of Volve ocean-bottom cable data set without up/down decomposed wavefields

M Ravasi, I Vasconcelos, A Curtis, A Kritski - Geophysics, 2015 - library.seg.org
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 …

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 …

Elastic internal multiple analysis and attenuation using Marchenko and interferometric methods

CA da Costa Filho, GA Meles, A Curtis - Geophysics, 2017 - library.seg.org
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 …

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 …

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 …

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 …