Gradient-regularized physics informed neural networks for acoustic wave simulation

Shobhit Mishra, Bharath Shekar

International Meeting for Applied Geoscience and Energy (IMAGE)

... the acoustic wave equation. PINNs are capable of simulating seismic wave propagation without the need for discretization and can be modified to be resolution...

Variations in Morphology of Major River Deltas as Functions of Ocean Wave and River Discharge Regimes

L. D. Wright , J. M. Coleman

AAPG Bulletin

... given set of wave characteristics may then be calculated from EQUATION (1) where ^ggr is the weight per unit volume of seawater and Cg is the group...

Abstract: Regular Grids Travel Time Calculation … A Practical Huygens Wavefront Expansion Approach; #90187 (2014)

Zhengsheng Yao, Mike Galbraith, and Randy Kolesar

Search and Discovery.com

...), ( ) is a parameter that defines the wave propagation direction. Equation (1) simply tells us that the wave propagation direction is perpendicular...

Anisotropic 3D Amplitude Variation with Azimuth (AVAZ) Methods to Detect Fracture-Prone Zones in Tight Gas Resource Plays, #41531 (2015).

Bill Goodway, John Varsek, Christian Abaco

Search and Discovery.com

...’s Equation Inversion for P-wave anisotropy follows from isotropic AVO by utilizing Ruger’s anisotropic reformulation of the Aki and Richards linearized...

Upscaling acoustic wave equation using renormalization group theory

Ajay Malkoti, Shravan M. Hanasoge, Rene Edouard Plessix

International Meeting for Applied Geoscience and Energy (IMAGE)

...Upscaling acoustic wave equation using renormalization group theory Ajay Malkoti, Shravan M. Hanasoge, Rene Edouard Plessix Upscaling acoustic wave...

Abstract: A Look into Gassmanns Equation; #90187 (2014)

Nawras Al-Khateb

Search and Discovery.com

...Abstract: A Look into Gassmanns Equation; #90187 (2014) Nawras Al-Khateb AAPG Search and Discovery Article #90187 © CSPG/CSEG/CWLS GeoConvention...

Wave Climate and Littoral Sediment Transport, Northeast Gulf of Alaska

Dag Nummedal, Michael F. Stephen

Journal of Sedimentary Research (SEPM)

... · Pi,m (4) Deep water wave power for each of the eight compass directions was computed according to equation 4 from SSMO tabulated Pi,m'S and ri,j's...

The Threshold of Sediment Movement Under Oscillatory Waves: A DISCUSSION

Ole S. Madsen, William D. Grant

Journal of Sedimentary Research (SEPM)

... = 2/T is the radian frequency and T the period of the oscillation. By comparison with Equation (3) it is seen that the wave friction factor for laminar...

Abstract: The Attenuation Effects of Surface-Wave Propagations on Rockmass Using SASW Method

Suharsono, Abdul Rahim Samsudin

Geological Society of Malaysia (GSM)

...Abstract: The Attenuation Effects of Surface-Wave Propagations on Rockmass Using SASW Method Suharsono, Abdul Rahim Samsudin 158 The attenuation...

Abstract: Separated Wave-Field Imaging: Utilizing the Multiple Wavefield to Improve Sub-Surface Illumination for OBS Surveys; #90319 (2018)

Jyoti Kumar, Tony Martin, Julien Oukili

Search and Discovery.com

... Norway, Oslo, Norway. ABSTRACT Wave-equation migration consists of numerically extrapolating source and receiver wavefields into the subsurface, where...

Hierarchical elastic velocities reconstruction with Eikonal-equation-based characteristic reflection traveltime tomography

Jianhua Wang, Jianming Zhang, Liangguo Dong, Yandong Wang

International Meeting for Applied Geoscience and Energy (IMAGE)

... and South China Sea. However, this method is only applicable to acoustic cases now, and the efficiency is significantly decreased by the wave equation-based...

Localized wavefield inversion (LWI): An adaptation of multi-block ADMM for localized FWI

Hossein S. Aghamiry, Ali Gholami, Stephane Operto, Alison Malcolm

International Meeting for Applied Geoscience and Energy (IMAGE)

... where the redatumed data on the part of the medium or localized solvers for the wave equation are used. On the other hand, the classical formulation...

Changing Wave Parameters, Due to Shoaling, and Sediment Transport

William F. Tanner

GCAGS Transactions

... or shoaling processes, without additional information. Initial wave period and wave height, and modal inshore wave length, fit a simple equation...

Exploring Beneath High-Velocity Surfaces, by Bob Hardage; #40344 (2009)

Search and Discovery.com

A novel viscous pure-acoustic wave equation and its numerical implementation in 3D TTI media

Long Wu, Yixian Xu, Shigang Xu

International Meeting for Applied Geoscience and Energy (IMAGE)

...A novel viscous pure-acoustic wave equation and its numerical implementation in 3D TTI media Long Wu, Yixian Xu, Shigang Xu A novel viscous pure...

Time-lapse seismic joint inversion based on Zoeppritz equation in depth domain

Wenjin Li, Jingye Li, Lei Han, Zhen Liao

International Meeting for Applied Geoscience and Energy (IMAGE)

...）True model of ΔP-wave monitoring seismic data constructed after phase shifting equation (3). In order to reduce the instability of multiparameter...

Normalized energy-norm imaging condition for elastic reverse-time migration

Can Oren, Jeffrey Shragge

International Meeting for Applied Geoscience and Energy (IMAGE)

... approach. THEORY Assuming linear elasticity, we consider the anisotropic elastic wave equation with no external sources (Aki and Richards, 2002...

Oscillation Sand Ripples Generated by Laboratory Apparatus

Martin C. Miller , Paul D. Komar

Journal of Sedimentary Research (SEPM)

... points of Figure 7 lie above the data from the wave flumes and water tunnels, and above the line of equation (5). The field data at D = 125 microns lies...

Not Accounting for a Potential Water Hammer Pressure Surge in Shale Stimulation Designs Can Increase Your Over-Pressure Risk

Stan Stephenson, Joe Beisel, Brad Bull

Unconventional Resources Technology Conference (URTEC)

... reflected wave can be worse than the first. Theory Water-hammer: To solve for the water-hammer pressure, the kinetic energy equation is set equal...

Application of Anisotropic 3D Reverse Time Migration to Complex North Sea Imaging; #41573 (2015)

M. A. Hall, I. F. Jones, M. C. Goodwin, I. D. Berranger, H. Zhou, P. A. Farmer

Search and Discovery.com

... solutions of the wave equation, such as Reverse Time Migration (RTM) have become commercially available: - these are suited for highly complex...

Forward modeling for arbitrary irregular free-surface based on body-fitted grid

Erxiang Wei, Jianping Huang, Zhenchun Li

International Meeting for Applied Geoscience and Energy (IMAGE)

... with a body-fitted grid. However, as the wave field variables in this equation no longer satisfy the staggering property, the use of a standard...

Reservoir Characterisation Through Integrated AVO, AI and EI Inversion

Andy Furniss

Indonesian Petroleum Association

... corresponding to fractional changes in P-wave velocity (Vp), S-wave velocity (Vs) and density (ρ). Using the equation of Gardner et al. (1974), which...

Improving the Convergence of Shot-Profile Migration by Plane Wave Synthesis

Chad M. Hogan

Search and Discovery.com

...-equation migration algorithm such as FOCI (Margrave et al., 2006). Plane-wave migration was developed in part to preserve the fidelity benefits of prestack...

Improving the Convergence of Shot-Profile Migration by Plane Wave Synthesis

Chad M. Hogan

Search and Discovery.com

...-equation migration algorithm such as FOCI (Margrave et al., 2006). Plane-wave migration was developed in part to preserve the fidelity benefits of prestack...

Prestack joint inversion based on multi-components seismic data using analytical solution of 1D elastic wave equation

Weiheng Geng, Wenkai Lu, Jingye Li, Xiaohong Chen, Yinshuo Li, Lei Han, Cao Song

International Meeting for Applied Geoscience and Energy (IMAGE)

...Prestack joint inversion based on multi-components seismic data using analytical solution of 1D elastic wave equation Weiheng Geng, Wenkai Lu, Jingye...