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The AAPG/Datapages Combined Publications Database
Showing 254 Results. Searched 195,364 documents.
An Advanced Interpretation Technique Integrates Well Log and Core Data for Thin-Bed Reservoir Evaluation
Ashok Sinha , Tony Lawrence , Bill Simmons
GCAGS Transactions
... two receivers, and the phase shift (or propagation time) between two receivers. The dielectric constant and the resistivity are calculated...
1989
Integrated Geomechanical Interpretation of Hydraulic Stimulation Operations Using Distributed Vibration Sensing
Michael Williams, Joel Le Calvez, Colin Wilson, Adrian Rodriguez-Herrera
Unconventional Resources Technology Conference (URTEC)
... in time and space of the perturbations occurring to the fibre (i.e. the signal). A phase-shift map for the target fiber at rest is augmented by a linear...
2019
Passive Margin Stratigraphy: Chapter 8
Charles L. Angevine, Paul L. Heller, Chris Paola
AAPG Special Volumes
... the periods of the shoreline and sea-level oscillations are identical, there is a phase shift between the two. This phase shift translates into a time...
1990
Angle Gathers for Gaussian Beam Depth Migration, #41593 (2015).
Samuel Gray
Search and Discovery.com
... as a phase shift, can be applied to the image, whether the image was obtained from WEM, Kirchhoff migration, or GBM. So this strategy is applicable...
2015
Modelling of Drift of Nearby Icebergs Using Wind and Current Measurements at a Fixed Station
E. D. Soulis
CSPG Special Publications
..., but in approximately the same direction. They respond to transitory currents with about one-half the amplitude of the current and a phase shift of 13.7...
1975
Geophysics: Seeing the Whole Picture
Steve Morse, Gerrard Spear
GEO ExPro Magazine
... and data re-binned to a common grid. This will allow users the ability to remerge surveys using their own phase and shift parameters, without the need...
2022
2-D and 3-D Prestack Depth Migration for Complex Geologic Structures Offshore Indonesia
M. Murphy, R. Ottolini, R. Estill, E. Lumadyo, M. Mathias
Indonesian Petroleum Association
... the efficiency has been developed by Unocal. It applies a phase shift compensation operator to correct for the cumulative error due to the inline...
1996
Extended Abstract: Refined RDIP and RSTRIKE Analysis Using Geocentric Sectoring of LWD Azimuthal Log Data for Enhanced Reservoir Navigation and Petrophysical Characterization: Theoretical Basis and Simulations
James J. Willis, Lauren A. Martz
GCAGS Transactions
...°) is off, resulting in a phase shift of the cosinusoid relative—this indicates that a correction is necessary to achieve geocentrism. Darker colored dots...
2020
Abstract: Properties of Gabor Operators for Seismic Imaging; #90171 (2013)
Michael P. Lamoureux and Gary F. Margrave
Search and Discovery.com
...., Margrave, G. F., and Lamoureux, M. P., 2008, Phase shift time stepping for reverse time migration: the Marmousi data experience, Tech. rep., CREWES...
2013
Abstract: Time-Lapse Repeatablity in 3C-3D Dataset from Weyburn CO2 Sequestration Project; #90171 (2013)
Jinfeng Ma, Le Gao, and Igor Morozov
Search and Discovery.com
...-record gathers (Morozov and Gao, this Convention), accurate time, amplitude, spectral, and phase-shift alignment still can be achieved...
2013
Abstract: Full Waveform Inversion Algorithm using Time Imaging Methods; #90174 (2014)
Hassan Khaniani, John C. Bancroft, Gary F. Margrave, and Eric von Lunen
Search and Discovery.com
... of frequencies in updating model. Vigh and Starr (2006) used plane-wave method for 3D problems and Margrave et. al., (2010) used Phase Shift Plus Interpolation...
2014
Abstract: Separation of Geometric Spreading, Scattering and Intrinsic Attenuation in VSP data; #90187 (2014)
Amin Baharvand Ahmadi and Igor Morozov
Search and Discovery.com
...-mode transformations on all of the boundaries: N ei TN ,1 Ti ,i 1 i 2 0 0 , e i (4) where i is the phase shift...
2014
Abstract: Kirchhoff Imaging with Adaptive Greens Functions for Compensation for Dispersion, Attenuation, and Velocity Imprecision; #90187 (2014)
Andrew V. Barrett
Search and Discovery.com
... this is not common. It may also contain the phase shift due to passage of the ray through caustics using a calculation of the KMAH (Keller, Maslov, Arnold...
2014
Abstract: Depth Migration of Monostatic and Bistatic Georadar Data; #90187 (2014)
Robert J. Ferguson, Matthew J. Yedlin, Christian Pichot, Jean-Yves Dauvignac, Nicholas Fortino, and Stephane Gaffet
Search and Discovery.com
..., A., and Rowel, C., 2010, Shot record depth migration of georadar; CREWES Research Report, 21. Gazdag, J., 1978, Wave equation migration with the phase-shift...
2014
Abstract: An Experiment to Detect Nonlinear Seismic Responses on Exploration/Monitoring Scale; #90187 (2014)
Kris Innanen, Gary Margrave, and Malcolm Bertram
Search and Discovery.com
... take on a very noticeable relative phase shift. This appears to us at present to be the most promising trail to follow in an attempt to positively...
2014
Abstract: *Detection of Hydrocarbons from Velocity Logs using the Wavelet Coherence Analysis: A Case Study from Algerian Tight Reservoirs; #91202 (2022)
Said Gaci, Mohammed Farfour, and Saliha Amoura
Search and Discovery.com
... of correlation and phase shift against depth and scale (or wavenumber), and show a weak wavelet coherence at large scales (or small wavenumbers...
2022
2004
Integration of Depth Conversion, Seismic Inversoin and Modeling Over The Belida Field, South Natuna Sea Block "B", Indonesia
Patrick Jonklaas
Indonesian Petroleum Association
..., porosity etc. The inversion process can be broken into several stages. These are data base selection, phase and time shift determination, match, inversion...
1991
Time-Lapse Seismic Monitoring of Individual Hydraulic Frac Stages Using a Downhole Distributed Acoustic Sensing Array
Gary Binder, Aleksei Titov, Diana Tamayo, James Simmons, Ali Tura, Grant Byerley, David Monk
Unconventional Resources Technology Conference (URTEC)
... cable, dynamic strain changes can be sampled along the cable from the phase shift of light backscattered to the interrogator (Hartog, 2017). Since...
2019
Modified Residual Migration
Craig J. Beasley, Rolf Klotz
Southeast Asia Petroleum Exploration Society (SEAPEX)
... to phase-shift migration and thus, is exact. However, evaluation of the accuracy of time migration in a setting of lateral velocity variations, where...
1992
U-net based primary alignment
Ricard Durall, Ammar Ghanim, Norman Ettrich
International Meeting for Applied Geoscience and Energy (IMAGE)
...) and convolving them with synthetic source wavelets. The central frequency, bandwidth, and linear phase-shift parameters of the source wavelets...
2023
Application of high-resolution reflection seismology to eastern Kansas cyclothems
Ralph W. Knapp
Kansas Geological Society
... m (3.3 ft) thick. Although there is a slight time-shift, one can consider the peaks to represent the "limestones" and the troughs the "shales." (Phase...
1989
Fine description of composite channel sand bodies based on multiseismic attribute CMY fusion technology
Zhenglong Zhang, Jianli Wang, Hebing Tang, Xuetong Liu
International Meeting for Applied Geoscience and Energy (IMAGE)
... and smoothing the migration velocity field, and calibrating the drilling velocity to obtain high-precision migration velocity, phase shift 3D migration...
2023
Case Study: AVO and Attenuation Gradient Application in Banuwati-Mila Gas Fields
Zha Chaoyang, Shen Shuirong, Ari Masputra, Pei Daqing, Lu Jianjun
Indonesian Petroleum Association
... analysis in the studies. Angle-limited stacks were performed on the data after model-based phase compensation, +25 degree phase shift for well tie...
2009
Review: Geophysical Methods for Karst Detection and Mapping
T. L. Dobecki
Houston Geological Society Bulletin
... the transmitters and are modified (tilt, phase shift, etc.) when they pass over conductors in the subsurface. The field gear is light, single operator...
1990