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The AAPG/Datapages Combined Publications Database
Showing 296 Results. Searched 200,673 documents.
Full phase-velocity spectrum inversion of multimode Rayleigh waves
Yanlong Niu, Yunyue Elita Li, Siau Chen Chian
International Meeting for Applied Geoscience and Energy (IMAGE)
... element method (FEM) to simulate the seismic wave propagation as the forward modeling. Then, the phase shift method is employed on the multiple...
2022
Detail Illustration of Structural Discontinuities: Fault Intensity Attribute to Enhance the Fault Likelihood, Hessian Derivative and Fault Extraction
Aji Darma Maulana, Argya Hastubrata Basundara, Muhammad Hafiz Baharuddin, Syukron Ady Purnawiranto, Muhammad Alfateh Saifullizan
Indonesian Petroleum Association
... or phase shift, and shape. No 1 2 3 4 5 6 7 Parameter Wavelet Type Peak Frequency Scaling Factor Wavelet Length Phase Sampling Rate Phase Shift...
2023
Fluid Prediction from 3-D Seismic Data in Deepwater Sandstone Reservoirs: Applications from Cocuite Gas Field, Veracruz Basin, Southeastern Mexico
Fouad, Khaled, Jennette, David C., Soto-Cuervo, Arturo
GCAGS Transactions
... chosen for the analysis was an extracted wavelet of 100 ms operator length, 4 ms sample rate, and 64° phase shift. Seven seismic horizons were used...
2002
Fast Shear Azimuths in the Marcellus Shale from VSP and Crossed Dipole Sonic Data; #42161 (2017)
Steve Horne, David Rampton, John Crowe
Search and Discovery.com
... the equations of an ellipse written as: 𝑒𝑒 = 1 − cos 𝛽𝛽 1 + cos 𝛽𝛽 Equation 2 where β is a phase shift parameterizing the non-linearity...
2017
Geophysical Interpretation of Pinedale Field
Sally G. Zinke
AAPG Special Volumes
... DeconvolutionFilter/ ScalingDMO to stackFilter/ Scaling 3-D Finite Difference Migration V(x,y,t)Spectral EnhancementVariable velocity phase shift...
2014
Geophysical Investigations Within the Colorado Mineral Belt Using New Inductive Electromagnetic Instrumentation
Paul B. Alexander
Earth Science Bulletin (WGA)
...) readings were determined. The phase shift, profile shapes, and intensities reflected physical properties of the conductor. The theoretical effective...
1968
The impact of exploration/appraisal activities on the recovery per well in North Perth Basin
Hongfeng Wu, Frank Glass, Martin Storey, Simon Molyneux, William Walton
Australian Energy Producers Journal
... exploration phase. The shift in NPB exploration potential highlights the need for technology and resource efficiency to maintain longterm production. While...
2024
VSP Guided Reprocessing and Inversion of Surface Seismic Data
R. Gir, Dominique Pajot, Serge Des Ligneris
Southeast Asia Petroleum Exploration Society (SEAPEX)
.... A gross time-shift of 2.04 ms was computed from the cross correlation function. A weighted average phase rotation filter was filtered over spectral...
1988
Technique and Methods of Geophysical Exploration in Canada
A. I. Bogdanov
Petroleum Geology: A Digest of Russian Literature
.... By means of the helicopter the gondola can be towed at a height of 30 m above the surface. With this form of surveying not only is the angle of phase shift...
1959
Deep-learning-based downhole tool electromagnetic telemetry noise attenuation and source separation
Carlos Urdaneta, Arnaud Jarrot, Shirui Wang, Xuqing Wu, Jiefu Chen
International Meeting for Applied Geoscience and Energy (IMAGE)
... data v(t). and a bit rate of 16bps using quadrature phase shift keying (QPSK) modulation. The synthetic data set was constructed from the field...
2022
S-transform based processing of noisy surface wave record for recovering high-resolution spectrum
Sayan Mukherjee, Mrinal Bhaumik, Tarun Naskar
International Meeting for Applied Geoscience and Energy (IMAGE)
...-wavenumber (f -k) (Yilmaz, 1987), and phase-shift (f-c) transform (Park et al., 1998), frequency decomposition and slant stacking (Xia et al., 2007), high...
2022
Quantitative analysis of DAS recorded P-wave generated by perforation shots
Peiyao Li, Ge Jin
International Meeting for Applied Geoscience and Energy (IMAGE)
... different excitation modes at different stages. is the offset. After applying offset-dependent phase shift, we then sum over all the offsets...
2022
Evaluation of Logging While Drilling Technology, Offshore, East Kalimantan
S. Sutiyono
Indonesian Petroleum Association
... reading range Figure 5b. Phase Shift resistivity (RPS) is comparable to the Medium Phasor Induction log (IMPH) Figure 6. Both LWD and wireline data...
1992
Hydraulic fracture aperture estimation using low frequency DAS and DSS in Austin Chalk and Eagle Ford Shale
Xiaoyu Zhu, Jonathan Ajo-Franklin, Julia Correa, Yuanyuan Ma, Jaewon Saw, Linqing Luo, Kenichi Soga
International Meeting for Applied Geoscience and Energy (IMAGE)
... Fiber Optic Sensing (DFOS) techniques utilize the phase shift of backscattered laser energy to detect changes in strain along the fiber. Distributed...
2023
Fast viscoacoustic forward modeling method based on U-net Fourier neural operator
Wenbin Tian, Yang Liu
International Meeting for Applied Geoscience and Energy (IMAGE)
... operations and facilitating the phase-shift process across the entire domain. The FNO method effectively emulates the mathematical-physical behavior...
2023
4D Seismic Reservoir Characterization of a CO2 Flood: A New Technology
Sony R. Mohammad, Thomas L. Davis
Indonesian Petroleum Association
... phase, time-shift, frequency, and amplitude mismatch between the data, which might occur due to different acquisition parameters, soil condition...
2011
Frequency-dependent reflection characteristics of single thin layer and waveform inversion
Zhengyang Kuai, Danping Cao, Chao Jin
International Meeting for Applied Geoscience and Energy (IMAGE)
... propagation matrix, D represents the eigenvector matrix, and E represents the phase shift matrix E diag e i q h , e iq h , eiq h , ei q h...
2023
Recovering the invisible signals for urban traffic monitoring using distributed acoustic sensing
Yangkang Chen, Hang Wang, Rui Min, Yunfeng Chen
International Meeting for Applied Geoscience and Energy (IMAGE)
... contains an interrogator unit that sends coherent laser pulses into the fiber-optic cable and uses the optical phase shift of the back-scattered light...
2024
From geophone arrays to point receivers: Implications for sensor and land survey design
Nicolas Goujon, Tom O’Toole
International Meeting for Applied Geoscience and Energy (IMAGE)
... and aging effects. A 1 % variation in sensitivity generates a −40 dB perturbation. A −40 dB perturbation would also result from a 0.6° phase shift...
2024
Beneficial impacts of receiver arrays on suppressing seismic speckle noise from near-surface heterogeneities: A reflection of 3D seismic acquisition practices in the Middle East
Andrey Bakulin, Ilya Silvestrov, Dmitry Neklyudov
International Meeting for Applied Geoscience and Energy (IMAGE)
... increasing phase shift across frequencies. Inspired by these observations as well as speckle studies we introduce general trace model...
2024
Bramberge Field, Federal Republic of Germany: Case Histories
A. Roll
AAPG Special Volumes
... of the Emsland wells. The reflection itself appears approximately 30 msec later in accordance with the phase shift due to the analog filtering...
1972
U.S. Gulf Coast Field Experience with Thin-Bed Well Log Analysis
Tony D. Lawrence , Ashok K. Sinha , Walter H. Fertl
GCAGS Transactions
... and Fernandez, 1987). The dielectric logging instrument measures the attenuation and the phase shift of the emitted electromagnetic wave between two...
1990
Well Interference Testing using Fiber Optics Production Analysis
Marcel A. Grubert, Xinyang Li, Todd Bown, J. Andres Chavarria
Unconventional Resources Technology Conference (URTEC)
... is scattered back to the surface. Measuring amplitude, phase shift and timing of those return signals, a distinct “map” of the fiber can be created. Since...
2021
Abstract: Robust Singular Spectrum Analysis for Erratic Noise Attenuation; #90187 (2014)
Ke Chen and Mauricio D. Sacchi
Search and Discovery.com
... will fast approximations to Under the signal in frequency the time delay in t-x domain or change to phase shift in freqeuncy in D SSA method. However...
2014
Abstract: Nonlinear Seismic Wave Propagation in Heavy Oil; #90224 (2015)
Wubing Deng and Igor B. Morozov
Search and Discovery.com
... 90 phase shift (blue line in Figure 4). Such phase-rotated reflection is controlled by the viscosity contrast. Note that similarly, strong nonlinear...
2015