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Keywords: wavenumber
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Proceedings Papers

Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 26–29, 2024
Paper Number: SEG-2024-4094852
... to be reconstructed. To prevent signal leakage (e.g., due to blurring in the wavenumber domain), the method simultaneously estimates a footprint model, and a separate signal model. We demonstrate the method on an FWI gradient generated from a narrow-azimuth multi-survey dataset. While the examples here focus on FWI...
Proceedings Papers

Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 27–September 1, 2023
Paper Number: SEG-2023-3913209
... characterization applied geoscience deep learning machine learning dinn american association energy 10 international constraint frequency international conference self-supervised learning geophysics chen distance jiefu chen exploration geophysicist wavenumber society Anti-aliasing seismic data...
Proceedings Papers

Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 27–September 1, 2023
Paper Number: SEG-2023-3916060
... association spectra u-net exploration geophysicist wavenumber tongtong mo state key laboratory interpolation accuracy wang applied geoscience Accurate Seismic Data Interpolation Based on Multiband Intelligent Training Xueyi Sun*, Benfeng Wang, and Tongtong Mo State Key Laboratory of Marine Geology...
Proceedings Papers

Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 28–September 1, 2022
Paper Number: SEG-2022-w6-03
... production monitoring implication production control acquisition reservoir surveillance wavenumber american association energy 10 exploration geophysicist spatial resolution application filter optical fiber spatial resolution acquisition applied geoscience society das international dean...
Proceedings Papers

Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 28–September 1, 2022
Paper Number: SEG-2022-3745219
... resolution invertibility event location inversion workflow upstream oil & gas inversion international wavenumber hydraulic fracturing exploration geophysicist american association joint velocity correction microseismic reservoir monitoring summary society le calvez reservoir...
Proceedings Papers

Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 28–September 1, 2022
Paper Number: SEG-2022-3751011
... wavenumber frequency upstream oil & gas reservoir characterization incident p-wave exploration geophysicist fracture characterization conductivity assumption hydraulic conductivity amplitude american association cheng ionov applied geoscience energy 10 geophysical research Borehole...
Proceedings Papers

Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 28–September 1, 2022
Paper Number: SEG-2022-3751148
... international deep learning machine learning wavenumber upstream oil & gas reservoir characterization equivariant imaging exploration geophysicist dataset society time geophysics equivariance artificial intelligence fk spectra frequency applied geoscience energy 10 american association...
Proceedings Papers

Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 28–September 1, 2022
Paper Number: SEG-2022-3751596
... well logging drilling measurement exploration geophysicist applied geoscience wavenumber geophysics In this paper we revisit a very specialized borehole acoustic computational method to compute the fundamental wave types (head waves and borehole guided modes) that make up the full waveform...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3594136
... geoscience biondi amplitude tomographic waveform inversion kinematic error wavenumber velocity model inverted model twi stanford university exploration geophysicist 10 biondo biondi Tomographic waveform inversion (TWI) Júlio Oliva Frigério* and Biondo Biondi, Stanford University. Summary and V...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3583948
..., this method can not In the field of geophysical prospecting, the finite- reach the largest bandwidth in the same error limitation. He difference (FD) method has always been an important et al. (2018) modify the near-zero wavenumber condition numerical simulation algorithm. In order to suppress the during...
Proceedings Papers

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

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3427081
... the cycle-skipping problem. The scattering angle filter for the gradient is one way to isolate the low-wavenumber part of the gradient at the early stage. However, it could be costly because of the extensions necessary for precise scattering angle control. Due to the relationship between the wavenumber...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3215765
...) data acquired between the two boreholes to improve the bandwidth of the effective source wavelet by using wavenumber-amplified FWI models. A synthetic model is generated using a stochastic simulation based on measured parameters at Krauthausen. After generating forward modeling data (called true data...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3215798
... ABSTRACT The propagative wavenumbers are carried by the First Fresnel zone of the velocity gradient of RFWI and divingwaves FWI. Noting that the parameter-dependent radiation patterns follow iso-angle curves, we compare the ellipse of the First Fresnel with the iso-angles curves. The latter...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216561
... stoneley permeability log analysis seg international exposition case study fluid dynamics propagation wavenumber flow in porous media seg 10 permeability attenuation stoneley wave attenuation References References Biot , M. A. , 1962 , Mechanics of deformation and acoustic wave...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216654
... ABSTRACT We analyze the wavenumber sampling characteristics of decomposed RTM images through different schemes, including wavenumber-domain distribution of decomposed images, analytical analysis of model wavenumber vector, illumination-based imaging resolution function analysis etc. Based...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216694
... ABSTRACT Vertical fractures are often embedded into a finely layered medium, which leads to an effective medium with orthorhombic anisotropy. Ten independent parameters are necessary to completely characterize such a medium, including density and excluding rotations. Through wavenumber...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-W1-01
... exposition channel decimation nyquist wavenumber annual meeting noise wavenumber decimation shot gather receiver channel line mark apparent velocity mean stack upstream oil & gas vertical seismic profile xiaomin zhao reservoir characterization dataset frequency 1 Channel Decimation...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3198472
... at a high wavenumbers, we introduce an exponential window function to stabilize this exponentially divergent time propagator. Mathematically, the conventional low-pass filtering method and our previously proposed adaptive stabilization method can be taken as a special case of the generalized stabilization...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3209867
... on synthetic data that have been simulated for potential types of signals emitted by electro-mechanical sources. Presentation Date: Wednesday, September 18, 2019 Session Start Time: 1:50 PM Presentation Start Time: 3:05 PM Location: 214D Presentation Type: Oral wavenumber frequency wavefield...

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