Robust and efficient waveform-based velocity-model building by optimal transport in the pseudotime domain: Methodology

G Provenzano, R Brossier, L Métivier - Geophysics, 2023 - library.seg.org
Full-waveform inversion (FWI) aims at a broadband reconstruction of the subsurface
physical properties by fitting the entire recorded wavefield. In realistic exploration seismic …

Ensemble-based uncertainty estimation in full waveform inversion

J Thurin, R Brossier, L Métivier - Geophysical Journal …, 2019 - academic.oup.com
Uncertainty estimation and quality control are critically missing in most geophysical
tomographic applications. The few solutions to cope with that issue are often left out in …

[HTML][HTML] 黏声方程Q值反射波反演

邹鹏, 程玖兵 - 地球物理学报, 2020 - html.rhhz.net
地震波在非弹性介质中的衰减效应常用品质因子Q 度量. 相对准确的Q 模型对提高强衰减介质中
地震波成像的质量至关重要. 本文提出了黏声介质反射波形反演(QRWI) 方法来重建地下宏观Q …

Elastic reflection waveform inversion with variable density

Y Li, Q Guo, Z Li, T Alkhalifah - Geophysics, 2019 - library.seg.org
Elastic full-waveform inversion (FWI) provides a better description of the subsurface
information than those given by the acoustic assumption. However, it suffers from a more …

Central-difference time-lapse 4D seismic full-waveform inversion

W Zhou, D Lumley - Geophysics, 2021 - pubs.geoscienceworld.org
Repeated seismic surveys contain valuable information regarding time-lapse (4D) changes
in the subsurface. Full-waveform inversion (FWI) of seismic data can provide high-resolution …

Parsimonious slope tomography based on eikonal solvers and the adjoint-state method

S Sambolian, S Operto, A Ribodetti… - Geophysical Journal …, 2019 - academic.oup.com
Velocity macromodel building is an essential step of the seismic imaging workflow. Indeed,
obtaining acceptable results through migration or full waveform inversion is highly …

Modeling the seismic wavefield of moving marine vibrator source

K Almuteri, J Shragge, P Sava - Geophysics, 2024 - library.seg.org
Marine vibrators are an emerging alternative to conventional air guns in ocean-bottom
acquisition due to their ability to generate low-frequency waves and limited adverse impact …

Frequency-dependent reflection wave-equation traveltime inversion from walkaway vertical seismic profile data

Y Zheng, Y Wang, Q Luo, X Chang, R Zeng, B Wang… - Geophysics, 2019 - library.seg.org
To accurately image the geologic structures from walkaway vertical seismic profile (VSP)
data, it is necessary to estimate the subsurface velocity field with high resolution and …

Visco-acoustic wave equation reflection inversion for the Q model

P ZOU, JB CHENG - Chinese Journal of Geophysics, 2020 - en.dzkx.org
Seismic wave attenuation in anelastic media is characterized by the quality factor (Q). An
appropriate Q model is very important for improving the quality of seismic imaging in strong …

Two-step full waveform inversion of diving and reflected waves with the diffraction-angle-filtering-based scale-separation technique

D Kim, J Hwang, DJ Min, JW Oh… - Geophysical Journal …, 2022 - academic.oup.com
Full waveform inversion (FWI) is a highly non-linear optimization problem that aims to
reconstruct high-resolution subsurface structures. The success of FWI in reflection …