Robust and efficient waveform-based velocity-model building by optimal transport in the pseudotime domain: Methodology
Full-waveform inversion (FWI) aims at a broadband reconstruction of the subsurface
physical properties by fitting the entire recorded wavefield. In realistic exploration seismic …
physical properties by fitting the entire recorded wavefield. In realistic exploration seismic …
Ensemble-based uncertainty estimation in full waveform inversion
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 …
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 …
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
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 …
information than those given by the acoustic assumption. However, it suffers from a more …
Central-difference time-lapse 4D seismic full-waveform inversion
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 …
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 …
obtaining acceptable results through migration or full waveform inversion is highly …
Modeling the seismic wavefield of moving marine vibrator source
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 …
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 …
data, it is necessary to estimate the subsurface velocity field with high resolution and …
Visco-acoustic wave equation reflection inversion for the Q model
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 …
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
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 …
reconstruct high-resolution subsurface structures. The success of FWI in reflection …