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Keywords: Fourier Transform
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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-w12-01
... geoscience & energy 10 frequency fourier transform threshold simulation time irregularity Simultaneous source acquisition, accuracy, and deblending Ray Abma*, The University of Texas at Austin Summary While one goal of simultaneous sourcing is to economically acquire data, another goal...
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-2024-4098671
... spatial numerical dispersion, which uses the Fourier transform to compute spatial derivatives accurately. Secondly, to suppress the time dispersion, we treat the acoustic wave equation as a harmonic oscillator differential equation and obtain its exact finite difference scheme by the source discretization...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3569993
...Analysis of borehole radar logging signal using Short-Time Fourier Transform Chunguang Ma*, Jianjian Huo, Ruilong Song, Yong Luo University of Electronic Science and Technology of China (UESTC), Chengdu, Sichuan, China. Summary particularly sensitive to formation relative permittivity...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3579336
... where we compute the solution to the LSE using our method for different velocity models. linearly time complexity expanded abstract lippmann-schwinger equation upstream oil & gas numerical scheme artificial intelligence compute applied geoscience fourier transform iteration...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3585845
... should be used for the Deblending methods using double and single-precision Fourier and seislet transforms. For the acquisition aspect, an Fourier transforms, a seislet transform (Fomel and Liu, assumption is made that the sources are timed so that signal 2010, Chen et al., 2014), and a linear Radon...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3583082
...-domain are limited. We compare three frequency-domain angle measurement methods: the local slant stacking method, the local windowed Fourier transform method, and the frequency-domain directionalvector-based method. With numerical examples, their accuracies, flexibilities and efficiencies are analyzed...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3583203
... in each time window based on the short-time Fourier transform (Portnoff, 1980). Summary In this paper, we propose a spectral inversion method for Spectral inversion, based on the odd-even decomposition nonstationary seismic data called nonstationary spectral theorem of reflection coefficients, uses...
Proceedings Papers
Hao Zhao, Volodya Hlebnikov, Espen Harris Nilsen, Andreas Kjelsrud Evensen, Thomas Greiner, Jan Erik Lie, Leiv-J. Gelius
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3428420
... intelligence curvature fourier transform geophysical prospecting data quality aperture cr parameter exploration geophysicist 10 geophysics upstream oil & gas interpolation wavefield seg international exposition kinematic wavefield estimation interpolated data regularization reconstruction...
Proceedings Papers
A generalized time-domain equation based on the constant-Q theory for visco-acoustic wave simulation
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3418614
...: Wednesday, October 14, 2020 Session Start Time: 1:50 PM Presentation Time: 1:50 PM Location: 360A Presentation Type: Oral upstream oil & gas fourier transform geophysics seg international exposition frequency wave equation liu analytical solution reservoir characterization cwe...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3423985
... of the Fourier transform. We demonstrate that the tensor nuclear norm (TNN) of a sampling operator is correlated with the TNN of the corresponding observation, thus producing a useful tool for determining if low rank optimization is appropriate for a given observation. Of the possible six orientations for order...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3421471
.... On the other had, we argue that Assuming that a given waveform is composed of a sum of spatial aliasing can be viewed as an expression of a non- uniqueness for estimating the direction of the propagation for monochromatic wave elds, the Fourier transform projects the signal at a given frequency, and may...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3425548
... quality control for velocity which is very expensive. Xu et al. (2011b) reduces the cost by model building, improving structural imaging via illumination using an antileakage Fourier transform (ALFT) in local win- weighting, post-migration reprocessing (PMR) and estimation dows to nd the most energetic...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3425671
... Presentation Time: 10:35 AM Location: Poster Station 13 Presentation Type: Poster fourier transform projection operator coefficient inversion operator wavenumber convergence geophysics algorithm separation reservoir characterization robust projection operator iteration seg international...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216535
... characterization annual meeting sparse dynamic range acquisition data quality recovery fourier transform interpolation herrmann Abma , R. , and N. Kabir , 2006 , 3D interpolation of irregular data with a POCS algorithm : Geophysics , 71 , no . 6 , E91 – E97 , 10.1190...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3203905
... transform reconstruction error reservoir characterization fourier transform sufficient condition seismic wavefield acquisition optimization problem mutual coherence welch upstream oil & gas receiver matrix vector artificial intelligence reconstruction seg international exposition...
Proceedings Papers
An acceleration method for the anti-leakage parabolic Radon transform for seismic data interpolation
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3199275
...: 304B Presentation Type: Oral geometry radon transform algorithm coefficient seg international exposition reservoir characterization frequency slice seismic data interpolation data quality fourier transform regularization iteration parabolic radon transform acceleration method...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3214077
...:50 PM Presentation Start Time: 3:55 PM Location: 217A Presentation Type: Oral upstream oil & gas depth domain ieee transaction application wavelet fourier transform seismogram reflectivity spectrum seismic data data quality signal processing machine learning depth...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3214588
... fourier transform synthetic trace amplitude spectrum low frequency reservoir characterization ricker wavelet seg international exposition basic frequency frequency wavelet resolution annual meeting data quality harmonic prediction method bandwidth wavelet transform upstream oil & gas...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3214674
... ABSTRACT A linearized Q-compensate AVO inversion approach is proposed. First, we derive the forward modeling matrix in frequency domain and transformed to time domain by Fourier transform. Then, by defining the complex traveltime in frequency domain, we can model AVO gathers with attenuation...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2997878
...: Tuesday, October 16, 2018 Start Time: 8:30:00 AM Location: 210A (Anaheim Convention Center) Presentation Type: Oral spectral decomposition seismic data fourier transform cwsd method resolution system tract coherency weighted spectral decomposition data quality seismic section ricker...
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