... 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...

... 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...

... Measurements of dynamic elastic properties of shale exhibit dispersion at seismic frequencies as well as between seismic and ultrasonic frequencies. We point to various possible dispersion mechanisms, including viscoelasticity of bound water in the narrow pores associated with clays and squirt...

... characterization petroleum geology upstream oil & gas international geologist reservoir geomechanics economic geology bianco acquisition geological subdiscipline geophone frequency inversion permian basin lewis karr registration american association energy 10 figure applied geoscience...

... 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...

... 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...

... 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...

... 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...

... 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...

... 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...

... stratigraphy international applied geoscience geological subdiscipline economic geology mexico government rock type reservoir characterization contribution resolution expanded abstract gulf frequency american association energy 10 exploration geophysicist noise attenuation information society...

... 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...

... 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...

... 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...

... 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...

... 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...

... logging production control frequency directivity compensation amplitude figure compensation exploration geophysicist expanded abstract migration transformation american association reverberation operator international applied geoscience noise energy 10 Specialized processing...

... tectonic contexts. Even if the data collection design is suitable, in having long offsets and low frequencies, the salt interface can distort the results if the acoustic wave equation is employed. Increased physics in FWI allows us to interrogate the power of elastic FWI versus acoustic FWI, and here we...

... 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...

... geologist asia government china government denmark government saturation netherlands government norway government geology europe government geological subdiscipline favo inversion applied geoscience dispersion south china sea deepwater reservoir geomechanics prediction frequency...