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Keywords: frequency
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Proceedings Papers

Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 27–September 1, 2023
Paper Number: SEG-2023-3914578
... With more and more marine seismic surveys utilizing Full Waveform Inversion for high quality velocity models it will be beneficial to generate additional low frequency energy beyond standard marine air gun arrays. The Gemini source is a novel solution to generating more low frequency energy...
Proceedings Papers

Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 27–September 1, 2023
Paper Number: SEG-2023-3915072
... exploration geophysicist upstream oil & gas geological subdiscipline transceiver integrated wireless system applied geoscience toroidal antenna society frequency energy 10 resistance american association international real-time subsurface co2 monitoring effect An Integrated Wireless...
Proceedings Papers

Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 27–September 1, 2023
Paper Number: SEG-2023-3915083
... Low frequency (LF) seismic source technology has demonstrated its business value in velocity model building. In this study, we explore the viability of broadband seismic imaging with a LF source. During a recent experiment in the Gulf of Mexico, we acquired ocean bottom node data with a special...
Proceedings Papers

Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 27–September 1, 2023
Paper Number: SEG-2023-3915651
... and attenuation characteristics. Low viscosity fluid (e.g., butane, water) results in a negligible dispersion and attenuation at measured frequency range. High viscosity fluid (e.g., glycerin), thus low fluid mobility, tends to produce significant dispersion and attenuation. More importantly, the measured...
Proceedings Papers

Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 27–September 1, 2023
Paper Number: SEG-2023-3915690
... compressive sensing based wavefield reconstruction to the non-uniform streamer shot grid a "virtual" shot carpet was generated. 50Hz Reverse Time Migration was applied to the OBN data using this reconstructed shot grid. Additionally, a Full Waveform Imaging (FWI Image) volume that fills in the low frequencies...
Proceedings Papers

Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 27–September 1, 2023
Paper Number: SEG-2023-3906046
... Seismic waves propagating in fluid-saturated porous rocks exhibit attenuation and velocity dispersion in a broad range of frequencies. At sonic and ultrasonic frequencies, the attenuation is mainly controlled by the pore-scale fluid flow (squirt flow) and viscous shear relaxation mechanisms. I...
Proceedings Papers

Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 27–September 1, 2023
Paper Number: SEG-2023-3907270
... gaussian exploration geophysicist geology machine learning alkhalifah frequency geologist american association society arxiv wavefield fomel fourier feature interpolation applied geoscience physics lff PINNslope: physics informed neural network slope prediction and interpolation...
Proceedings Papers

Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 27–September 1, 2023
Paper Number: SEG-2023-3908173
... is the impact of temperature on the pre-mobilization clock frequency disciplining approach. The paper presents a method to correct for temperature dependence of OCXO’s. upstream oil & gas frequency american association international recovery geologist reservoir characterization exploration...
Proceedings Papers

Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 27–September 1, 2023
Paper Number: SEG-2023-3908286
... summary frequency Structural and Time-Lapse Imaging through Gas Clouds via FWI at Eldfisk field, North Sea Zhengxue Li*, Leila Bencherif-Soerensen, Per Gunnar Folstad, Brian Macy, Simon Shaw and Baishali Roy SUMMARY In this study, we address the persistent challenges of structural and time-lapse...
Proceedings Papers

Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 27–September 1, 2023
Paper Number: SEG-2023-3911776
... resolution due to the limit of prior FWI frequency. To meet these challenges and further resolve the reservoir details at Atlantis, we employed elastic Time-lag FWI (E-TLFWI) and elastic FWI (EFWI) Imaging up to 30 Hz. This allows us to reduce the salt halos, enhance the subsalt S/N, and reveal crucial...
Proceedings Papers

Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 27–September 1, 2023
Paper Number: SEG-2023-3912155
... The pre-stack seismic amplitude variation with offset (AVO) inversion method utilizes the offset information of seismic data and has made great progress. However, the frequency information contained in seismic data has not been fully utilized in the inversion process. At the same time, for tight...
Proceedings Papers

Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 27–September 1, 2023
Paper Number: SEG-2023-3916715
... Interpreting full tensor gravity gradiometry data (FTG) depends on clear delineation of signature patterns arising from sub-surface geology. However, challenges presented by depth uncertainty and the presence of a noisy anomalous overprint characterized by a high frequency, low amplitude anomaly...
Proceedings Papers

Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 27–September 1, 2023
Paper Number: SEG-2023-3916812
... relaxation time domain. Sample conductivity was lower in samples showing higher quadrature conductivity at lower electromagnetic frequency. Deriving chargeability by a Cole-Cole model, we identified that chargeability increases with the increase of specific surface area of the total volume. This finding has...
Proceedings Papers

Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 27–September 1, 2023
Paper Number: SEG-2023-3917376
... Challenges faced in decoding high signal-to-noise ratio, high-frequency vibroseis data for near-surface targets demand the recording of raw, uncorrelated, nonvertically stacked data with as many source monitoring sensors as possible. Optimized processing flows for near-surface targets require...
Proceedings Papers

Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 27–September 1, 2023
Paper Number: SEG-2023-W14-02
... Differences in acquisition and processing parameters may result in seismic images from different surveys that look markedly different. Traditionally matching filter-based method has been used to merge the seismic images from various surveys but this method failed to keep the high frequency...
Proceedings Papers

Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 27–September 1, 2023
Paper Number: SEG-2023-3909023
... Presence of gas causes anomalous anelastic attenuation in porous rocks. Instantaneous frequency seismic attribute could detect the frequency anomaly, but its sensitivity to noise makes the attribute near useless. Tikhonov regularization can be used to stabilize the attribute, making it a useful...
Proceedings Papers

Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 27–September 1, 2023
Paper Number: SEG-2023-3909144
... government media anisotropy accurate simulation propagation upstream oil & gas reservoir characterization approximation p-wave geophysics wavefield attenuation anisotropy accuracy geology geological subdiscipline distance depth fractional laplacian frequency exploration geophysicist...
Proceedings Papers

Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 27–September 1, 2023
Paper Number: SEG-2023-3909377
... characterization real time system anomaly applied geoscience model-only inversion energy 10 american association normalization geophysics injection innanen canada government keating quantitative monitoring full-waveform inversion frequency time-lapse anomaly Real-time and quantitative monitoring...

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