Results 11 to 20 of about 803 (199)
Geosciences, 2021 The depth velocity model is a critical element for providing seismic data processing success, as it is responsible for the times of waves’ propagation and, therefore, prescribes the location of geological objects in the resulting seismic images ...
Vladimir Tcheverda, Kirill Gadylshin
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Acoustic 2D full waveform inversion to solve gas cloud challenges
Annals of Geophysics, 2015 The existing conventional inversion algorithm does not provide satisfactory results due to the complexity of propagated wavefield though the gas cloud.
Srichand Prajapati, Deva Ghosh
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A modified symplectic discontinuous Galerkin method for acoustic and elastic wave simulations
Frontiers in Earth Science, 2023 Numerically solving seismic wave equations is vital to large-scale forward modeling and full waveform inversion. In this paper, a new modified symplectic discontinuous Galerkin (MSDG) method is proposed to solve the acoustic and elastic equations.
Xijun He +4 more
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Seismic Characterization of the Blue Mountain Geothermal Field
Energies, 2023 Subsurface characterization is crucial for geothermal energy exploration and production. Yet hydrothermal reservoirs usually reside in highly fractured and faulted zones where accurate characterization is very challenging because of low signal-to-noise ...
Kai Gao +2 more
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Regularized Elastic Full Waveform Inversion Using Deep Learning [PDF]
81st EAGE Conference and Exhibition 2019, 2019 ABSTRACT Obtaining high-resolution models of the earth, especially around the reservoir, is crucial to properly image and interpret the subsurface. We have developed a regularized elastic full-waveform inversion (FWI) method that uses facies as the prior information. Deep neural networks (DNNs) are trained to estimate the distribution
Zhang, Zhendong, Alkhalifah, Tariq Ali
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Underground Space, 2018 We present and compare two flexible and effective methodologies to predict disturbance zones ahead of underground tunnels by using elastic full-waveform inversion.
Andre Lamert +3 more
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Advanced Elastic and Reservoir Properties Prediction through Generative Adversarial Network
Applied Sciences, 2023 The prediction of subsurface properties such as velocity, density, porosity, and water saturation has been the main focus of petroleum geosciences.
Muhammad Anwar Ishak +6 more
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Numerical simulations of pure quasi-P-waves in orthorhombic anisotropic media
Frontiers in Earth Science, 2023 The accurate simulation of anisotropic media is critical in seismic imaging and inversion. In recent years, some scholars have dedicated efforts to the study of precise elastic waves in anisotropic media; however, it is easy to separate P-wave and S-wave
Hao Wang +3 more
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Recent progress on full waveform inversion
地球与行星物理论评, 2023 Full waveform inversion is an acoustic/elastic/anelastic wave equation-based high accuracy seismic imaging method for studying the Earth's interior structure.
Hejun Zhu, Qinya Liu, Jidong Yang
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Acoustic full-waveform inversion in an elastic world
Geophysics, 2016 ABSTRACT Full-waveform inversion (FWI) is a technique used to obtain high-quality velocity models of the subsurface. Despite the elastic nature of the earth, the anisotropic acoustic wave equation is typically used to model wave propagation in FWI.
Calderon Agudo, O +3 more
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