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The AAPG/Datapages Combined Publications Database
Showing 18,799 Results. Searched 200,357 documents.
Abstract: Variable-factor S-transform for Time-frequency Decomposition, Deconvolution, and Noise Attenuation; #90172 (2014)
Todor I. Todorov, Gary F. Margrave
Search and Discovery.com
...(t) is the analysis window, usually Gaussian, and G(τ,f) is the complex Gabor spectrum. A fundamental property of the time-frequency decomposition...
2014
Abstract: Exploring Potential Applications of Gaussian Ball Filters in Sharpes Hollow Cavity Model; #90224 (2015)
Christopher C. Petten and Gary F. Margrave
Search and Discovery.com
... a spectrum that has three main features. These features include: (1) a low-frequency roll-off in the frequency spectra, (2) the overall amplitude response...
2015
Low-frequency data reconstruction for full-waveform inversion
Ramzi Djebbi, Maiza Bekara, Jaime Ramos-Martinez, Nizar Chemingui
International Meeting for Applied Geoscience and Energy (IMAGE)
...Low-frequency data reconstruction for full-waveform inversion Ramzi Djebbi, Maiza Bekara, Jaime Ramos-Martinez, Nizar Chemingui Low frequency data...
2022
Understanding the causes of low frequency shadow below gas hydrates
Ayman Noor M. Qadrouh, Saad Alajmi
Petroleum Exploration Society of Australia (PESA)
... of the centroid frequency of the power spectrum is estimated as a function of the travelled distance. Then, 1D experiments perform to quantify the frequency loss...
2019
Frequency in Defining Trend of Productive Thin-bedded Sandstone, by Bob Hardage, #40284 (2008)
Search and Discovery.com
2008
Abstract: Enhanced Analysis of 3-D Seismic Survey over a Carbonate Province
M. R. Thapar, B. R. Ayme
Geological Society of Malaysia (GSM)
... features, to strong reflections from carbonate rocks having a much higher velocity than the surrounding rocks. Amplitude, frequency, and velocity of seismic...
1980
Transformation of Arithmetic and Phi Size-Distribution Moments: NOTES
Basanta K. Sahu
Journal of Sedimentary Research (SEPM)
... arithmetic to phi-moments and vice versa are developed which can be applied to weight as well as number frequency size distributions and for any method...
1965
ABSTRACT: High-Frequency Relative Sea Level Fluctuations: Evidence from Skeletal Limestone Deposits, Western Interior Cretaceous, by B. B. Sageman, A. E. Murphy, B. Van Mooy, E. G. Kauffman; #91020 (1995).
Search and Discovery.com
1995
ABSTRACT: Predicting Reservoir Distribution From High Frequency Cyclic Events, Green Canyon 18 Field, Gulf of Mexico, by Vinod R. Mathur; #91019 (1996)
Search and Discovery.com
1996
The Use and Misuse of the Nonlinear Vibroseis Method for the Acquisition of High Resolution Seismic Data: ABSTRACT
Kenneth L. Hargrove
AAPG Bulletin
... of frequency change during the sweep. Nonlinear Vibroseis® sweeps are now becoming popular for the acquisition of high resolution seismic data in End_Page...
1983
ABSTRACT: Probabilistic Modeling of Fracture Density Constrained by Outcrop Data and Geomechanics, by Florez-Nino, Juan-Mauricio, Gary Mavko; #90026 (2004)
Search and Discovery.com
2004
Abstract: Restoration of Seismic Amplitude Using a Frequency-Dependent Gain Function, by Weihong Zhu and Khalid O. Al-Rufaii; #90077 (2008)
Search and Discovery.com
2008
2010
ABSTRACT: Multi-frequency Dielectrics Response Interpretation in Carbonate Rocks Using New Modeling Parameters, by Zhang, Tianhua; Zhao, Weishu; Akbar, Mahmood; #90141 (2012)
Search and Discovery.com
2012
Production Studies Using NMR and High-Frequency Dielectric Permittivity
Search and Discovery.com
N/A
Discrete Frequency Ant Tracking: Method and Application
Search and Discovery.com
N/A
Modeling High-Frequency Magnetic Coupling Wired Drill Pipe Channel Based on Linear Simulation
Search and Discovery.com
N/A
Seismic Attenuation Analysis for Reservoir Description
Search and Discovery.com
... and maybe reliable way is to use spectral decomposition, i.e. to do time-frequency analysis on each trace, and from instantaneous amplitude spectrum...
2013
Abstract: Spectral Decomposition Applications; #90211 (2015)
Satinder Chopra, John Castagna, and Vladimir Alexeev
Search and Discovery.com
... us ed frequently in seism ic data processing by wa y of s pectral analysis, frequency filtering, wavelet characterization, etc., but in recent years...
2015
Abstract: Application of Dominant Frequency Band Reconstruction Inversion Technology in the Prediction of Oil-Bearing Reservoirs under Coal-Bearing Strata;
Fulei Li, Xiang Guo, Bing Wang, Xufeng Zhang, Xuebin Yin, Yu Cao
Search and Discovery.com
...Abstract: Application of Dominant Frequency Band Reconstruction Inversion Technology in the Prediction of Oil-Bearing Reservoirs under Coal-Bearing...
Unknown
Finding a Better Path to Impedance Inversion; #41722 (2015)
Amit Kumar Ray, Ritesh Kumar Sharma, Satinder Chopra
Search and Discovery.com
.... As discussed earlier, the low-frequency band (less than 10 Hz) of the frequency spectrum is missing in the seismic data – and consequently, the transformed...
2015
Crystal oscillators and temperature compensated deterministic clock correction
Tim Bunting, Jason Jurok
International Meeting for Applied Geoscience and Energy (IMAGE)
... is an order or magnitude higher than CSAC drift. The cause of this difference is the impact of temperature on the pre-mobilization clock frequency...
2023
An application of FWI with progressive transfer learning
Shirui Wang, Jinjun Liu, Yuchen Jin, Xuqing Wu, Jiefu Chen
International Meeting for Applied Geoscience and Energy (IMAGE)
...(a) is the input data spectrum below 20 Hz, which shows that the dominante frequency is at around 12 Hz, and Second International Meeting for Applied...
2022
An improved Holo-Hilbert spectral analysis guided by fast matching pursuit
Chaohe Wang, Zhaoyun Zong
International Meeting for Applied Geoscience and Energy (IMAGE)
... a multiplicative process. Therefore, the information provided by time-frequency spectrum is incomplete. In order to quantify the nonlinearity...
2024
Detecting Fracture Zones in the Austin Chalk Using Seismic P- Wave Data
Ilyas Najmuddin
Houston Geological Society Bulletin
.... The shift in the spectrum towards lower frequencies is evident from the shift in the peak frequencies. Figure 6b. Peak frequency above the chalk minus...
2001