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Keywords: wavefield
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Proceedings Papers

Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 28–September 1, 2022
Paper Number: SEG-2022-3745792
... velocity mapping in complex near-surface conditions. asia government deep learning saudi arabia government machine learning neural network wavefield seismic model international full-waveform inversion artificial intelligence waveform inversion exploration geophysicist upstream oil...
Proceedings Papers

Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 28–September 1, 2022
Paper Number: SEG-2022-3745851
...) survey was designed to sample the wavefield along depth and with varying offset. These data are analyzed to determine intrinsic anisotropy for building a calibrated 1D vertical transverse isotropy (VTI) model, followed by further processing and analysis to determine the AVO response at the target zone...
Proceedings Papers

Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 28–September 1, 2022
Paper Number: SEG-2022-3745994
... record. artificial intelligence wavefield geophysics american association upstream oil & gas bernoulli reconstruction international reservoir characterization segmented poisson binomial exploration geophysicist applied geoscience probability poisson binomial jittered bernoulli...
Proceedings Papers

Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 28–September 1, 2022
Paper Number: SEG-2022-3752039
..., in which case an efficient method exists to compute the forward and adjoint actions of the integral kernel. We treat the inversion as a joint optimization problem, where both the model to be inverted and the wavefields for each source and frequency are simultaneously treated as optimization variables. Here...
Proceedings Papers

Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 28–September 1, 2022
Paper Number: SEG-2022-3751755
... velocities higher than what is common in typical marine acquisition. Our approach is not limited to mobile marine vibrator data, but is also applicable to streamer data. reservoir characterization equation receiver wavefield stationary imaging acquisition international operator american...
Proceedings Papers

Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 28–September 1, 2022
Paper Number: SEG-2022-3744979
... and survey size requires efficient processing solutions for attenuating free surface effects such as ghosts and multiples both in terms of usability and computing requirements. Traditionally, these processing steps were implemented by up-down wavefield separation to target the receiver-side effects, followed...
Proceedings Papers

Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 28–September 1, 2022
Paper Number: SEG-2022-3745069
...-based rfwi international applied geoscience wavefield demigration gradient reflection seg technical program expanded abstract full-waveform inversion Analysis of the impact of demigration on traveltime-based reflection full waveform inversion Hong Liang*, Houzhu (James) Zhang, Aramco Americas...
Proceedings Papers

Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 28–September 1, 2022
Paper Number: SEG-2022-3745244
...-dimensional deconvolution luiken reservoir characterization wavefield american association mdd geophysics utrecht university reconstruction upstream oil & gas international inversion applied geoscience vasconcelo iteration Physics-based preconditioned multi-dimensional deconvolution...
Proceedings Papers

Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 28–September 1, 2022
Paper Number: SEG-2022-3735889
... near-well formation structures. upstream oil & gas sensor signature figure 2 imaging receiver wavefield projection imaging reservoir characterization international exploration geophysicist applied geoscience haldorsen s-wave american association cube p-and s-wave figure 4...
Proceedings Papers

Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 28–September 1, 2022
Paper Number: SEG-2022-3749913
... The separation of the reflected and diffracted wavefields has been a crucial challenge in both seismic and ground-penetrating radar (GPR) data processing for many years. Different deterministic methods based on wavefront attributes, adaptive subtraction of reflections or plane-wave destruction...
Proceedings Papers

Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 28–September 1, 2022
Paper Number: SEG-2022-3750237
... wavefield applied geoscience media reservoir characterization geophysics exploration geophysicist qp-wave equation equation distance depth american association operator propagation resolution china university energy 10 Q-LSRTM using viscoacoustic VTI wave equation based on the nearly...
Proceedings Papers

Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 28–September 1, 2022
Paper Number: SEG-2022-3750385
... AVO inversion strikes a balance between what is desirable and what is achievable. upstream oil & gas avo inversion exploration geophysicist elastic wavefield seismic model web-avo inversion american association inversion seismic avo inversion linear avo inversion haffinger energy...
Proceedings Papers

Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 28–September 1, 2022
Paper Number: SEG-2022-3748665
... In the process of seismic wave propagation in real underground media, seismic wavefield is affected by anisotropy, Q attenuation and other factors. In order to more realistically simulate the propagation process of seismic wave in underground media, it is necessary to consider forward...
Proceedings Papers

Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 28–September 1, 2022
Paper Number: SEG-2022-3749861
... Recent studies on full-waveform inversion (FWI) show that extended-source formulations can make the inversion more immune to cycle-skipping compared to the classical formulation. This method, which is also called wavefield reconstruction inversion (WRI), first computes wavefields...
Proceedings Papers

Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 28–September 1, 2022
Paper Number: SEG-2022-3739640
... to demonstrate the main points of the proposed workflow. upstream oil & gas international expanded abstract applied geoscience society kernel inversion waveform inversion american association workflow reservoir characterization geophysics wavefield energy 10 tomography seismic model...
Proceedings Papers

Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 28–September 1, 2022
Paper Number: SEG-2022-3740290
... characterization media applied geoscience energy 10 upstream oil & gas inverse american association snapshot refocus university seismic model perturbation distance depth society equation wavefield exploration geophysicist international equation 5 2 schematic Inverse scattering theory...
Proceedings Papers

Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 28–September 1, 2022
Paper Number: SEG-2022-3740570
... Elastic wavefield imaging of multicomponent seismic data can provide additional information about sub-surface geological structures (e.g., elastic properties and fracture distribution) relative to single-component acoustic imaging. We propose a novel imaging condition for elastic reverse time...
Proceedings Papers

Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 28–September 1, 2022
Paper Number: SEG-2022-3742131
...% reduction in standard deviation compared to the standard processing techniques. upstream oil & gas correction impedance american association vertical seismic profile quantitative improvement exploration geophysicist reservoir characterization enhancing conventional vsp data wavefield...
Proceedings Papers

Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 28–September 1, 2022
Paper Number: SEG-2022-3743140
... and field data, and proven to be useful to inform structural/depth uncertainty. artificial intelligence green international upstream oil & gas wavefield deep green american association neural network machine learning exploration geophysicist propagation energy 10 migration receiver...
Proceedings Papers

Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 28–September 1, 2022
Paper Number: SEG-2022-3751512
..., and slow velocities in the near surface can prevent the acquisition of properly sampled wavefields which in turn significantly complicates the suppression of the near surface related noise. There are two key strategies available for reducing the sampling requirement without loss of information. Recording...

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