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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 26–29, 2024
Paper Number: SEG-2024-4098352
... between anisotropic and acoustic/isotropic parts of the model. We demonstrate our novel approach with Born modelling examples over various tilted transverse isotropic models and show its effectiveness in producing stable wavefields. geologist geological subdiscipline applied geoscience...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 26–29, 2024
Paper Number: SEG-2024-4100716
... Full waveform inversion (FWI) is crucial for reconstructing high-resolution subsurface models, but it is hindered by its computational intensity, especially for real-time applications. Leveraging learned wavefield solutions using a Fourier neural operator (FNO), we introduce a novel physics...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 26–29, 2024
Paper Number: SEG-2024-4100892
... Crosswell seismic imaging is often considered challenging with conventional migration methods, as a significant part of crosswell illumination occurs with large incidence angles, data have low and irregular fold, and the wavefield is complex because of guided waves and mode conversions. Even...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 26–29, 2024
Paper Number: SEG-2024-4101057
... geologist geological subdiscipline imaging coal layer applied geoscience & energy 10 exploration geophysicist american association acoustic rtm component data decomposition reservoir characterization wavefield equation elastic rtm image pp image Applications of Elastic RTM on Land Data...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 26–29, 2024
Paper Number: SEG-2024-4101079
... resolved and accurate tomographic image than 1-component ones (1-C). 3-C data enables to reconstruct the full wavefield, including the P-SV motion of the Rayleigh waves on the vertical and radial component and the SH motion of the Love waves on the transverse component. As Love and Rayleigh waves have...
Proceedings Papers
Riaz Alai, Ahmad Riza Ghazali, Lucy MacGregor, Faizan Akasyah Ghazali, Edysuzaily Kamarudin, Aidel Haikal Azmi, Garry Malo-Paul, Sandeep Kumar, Brendon Negenman, Oscar Augusto Barrios, Ge Zhan, Mitch Preston
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 26–29, 2024
Paper Number: SEG-2024-4101222
... interdisciplinary methodologies in overcoming the complexities of pre-carbonate imaging. geologist vertical seismic profile wavefield exploration geophysicist reservoir characterization carbonate shear wave petroleum geology geological subdiscipline applied geoscience & energy 10 american...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 26–29, 2024
Paper Number: SEG-2024-4101478
... demands storing the entire background wavefield. For voluminous 3D models, this requirement can escalate to storing terabytes of data for every shot, underscoring the limitations even when employing advanced strategies like optimal checkpointing, enhanced boundary conditions, and reduced wavefield...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 26–29, 2024
Paper Number: SEG-2024-4101608
... We propose a method to compute stable phase velocity direction of seismic wavefield using normalized wavefields. This method adds two phase velocity direction vectors to enhance stability. One is the direction vector from the wavefield, the other is the time derivative of the wavefield...
Proceedings Papers
Hassan Masoomzadeh, Fons ten Kroode, Tim Seher, Mohammad Akbar Hosain Zuberi, Alexander Kritski, Harald Westerdahl, Åsmund Sjøen Pedersen, Mark Thompson, Nick Bernitsas, Phil Behn, Philip Baltz
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 26–29, 2024
Paper Number: SEG-2024-4101654
... wavefield reservoir characterization subtraction separation petroleum geology non-compressional energy expanded abstract adaptive subtraction interface wave hydrophone american association accelerometer geologist geological subdiscipline rotational component exploration geophysicist...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 26–29, 2024
Paper Number: SEG-2024-4090706
... In this paper we present a mathematical formulation for the borehole fluid multipole wavefield due to a unipole excitation. Unipole source and multipole receiver array are axially offset from each other and located on the rim of an eccentered elastic tool submersed in a fluid-filled borehole...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 26–29, 2024
Paper Number: SEG-2024-4091108
... geology migration separation american association media imaging wavefield geophysics elastic reverse time migration inversion application Elastic reverse time migration with more than pressure data Denes Vigh*, James Xu, Xin Cheng, Zongcai Feng and Bing Bai, SLB Summary In practice...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 26–29, 2024
Paper Number: SEG-2024-4091384
... of the wavefield will be amplified exponentially, resulting in instabilities of the wavefield simulation. Therefore, we develop a stable attenuation-compensated wavefield propagator that can automatically suppress the high-frequency noise in the wavefield so as to achieve stable attenuation-compensated imaging. We...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 26–29, 2024
Paper Number: SEG-2024-4091407
... matching filter is solved to attenuate the multiples in data. We demonstrated the modeling process of SRMs from characteristic reflectors on a synthetic model, and applied the proposed method in field data. srm wavefield prediction model model information geologist reservoir characterization...
Proceedings Papers
T. Nemeth, K. Nihei, A. Loddoch, A. Sekar, K. Bube, J. Washbourne, L. Decker, S Kaplan, Ch. Wu, A. Shabelansky, O. Cristea, Z. Yin
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 26–29, 2024
Paper Number: SEG-2024-4091674
... This paper describes how to propagate wavefields for arbitrary numbers of traditional time steps in one step, called a superstep. It is achieved by implementing a computational tradeoff differing from traditional single step wavefield propagators by precomputing Greens functions for each model...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 26–29, 2024
Paper Number: SEG-2024-4092216
... receiver petroleum geology economic geology transformation galilean transform doppler effect exploration geophysicist equation source signature compensate wavefield marine current hampson & jakubowicz applied geoscience & energy 10 american association The effects of marine...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 26–29, 2024
Paper Number: SEG-2024-4092481
... In the processing of ocean bottom node (OBN) data, separation of up-going and down-going wavefields through combination of the hydrophones pressure component (P) and geophones vertical component (Z) is useful for receiver side deghosting through P/Z summation and improving shallow image...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 26–29, 2024
Paper Number: SEG-2024-4093433
... between cables or sparse nodes. In this work, the UDRM scheme is applied to a 2D line of the Volve ocean-bottom cable dataset; first, we present an effective data pre-processing flow that is able to produce accurate input wavefields as required by the proposed redatuming scheme. Second, imaging...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 26–29, 2024
Paper Number: SEG-2024-4094566
... and monochromatic noise. geologist surface wave applied geoscience & energy 10 geology reservoir characterization exploration geophysicist deep learning machine learning american association wavefield artificial intelligence surface wave suppression seismic data neural operator noise...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 26–29, 2024
Paper Number: SEG-2024-4094678
... Full Waveform Inversion (FWI) and Reverse Time Migration (RTM) are usually require the ready availability of the forward and adjoint simulated wavefields at the same time instance. Storing the forward wavefields of all time steps in computer memory or on the disk is impractical for 3D cases...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 26–29, 2024
Paper Number: SEG-2024-4095575
... dual-cylindrical coordinate system ultra-slow formation geologist eccentricity collar eccentricity acoustic wavefield american association expanded abstract well logging tool eccentricity wavefield formation s-wave slowness drilling Effects of tool eccentricity on acoustic logging...
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