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The AAPG/Datapages Combined Publications Database
Showing 71 Results. Searched 195,364 documents.
Refraction Solutions by Wavefront Targeting: ABSTRACT
Frederick L. Schenck
AAPG Bulletin
...Refraction Solutions by Wavefront Targeting: ABSTRACT Frederick L. Schenck 1963 1775 1776 47 9. (September) Emergent wavefronts can be developed from...
1963
Abstract: Seismic Data Reconstruction Using the Nonlinear Beamforming Framework; #91204 (2023)
Yimin Sun and Quentin Hirsch
Search and Discovery.com
... reconstruction method using the nonlinear beamforming (NLBF) framework. NLBF operators describe kinematic wavefronts via a second-order mathematical...
2023
Abstract: Coastal Changes and Engineering Structures
J. K. Raj
Geological Society of Malaysia (GSM)
... Malaya 50603 Kuala Lumpur Breakwaters, jetties and other structures constructed at coastlines where there is an oblique approach of wavefronts have...
2002
Abstract: Wavefront Picking for 3D Tomography and Full-Waveform Inversion; #90319 (2018)
Abdullah A. Theyab
Search and Discovery.com
.... To minimize the picking and QC time, I propose an efficient approach for picking first-break wavefronts on coarsely-sampled time slices of 3D shot...
2018
Abstracts: Attenuating 2D Noise in a 3D World; #90173 (2015)
David C. Henley
Search and Discovery.com
... a schematic of typical 3D acquisition geometry for one source point, with concentric circles representing the wavefronts of source-generated noise...
2015
Abstract: Getting Something for Nothing: Noise Attenuation in an Aliased World; #90174 (2014)
David C. Henley
Search and Discovery.com
... then be effectively estimated and removed by application of various processing techniques. Even when the noise wavefronts are visibly aliased...
2014
-- no title --
user
Search and Discovery.com
... by horizontally summed geophone arrays whose antenna pattern preferentially admits vertically travelling reflection wavefronts, rather than non-vertical...
Unknown
-- no title --
user
Search and Discovery.com
... by horizontally summed geophone arrays whose antenna pattern preferentially admits vertically travelling reflection wavefronts, rather than non-vertical...
Unknown
erformance of Seismic Arrays in the Presence of Weathering Layer Variations, #41841 (2016).
Jubran Akram, Abdullatif A. Al-Shuhail
Search and Discovery.com
... receiver array as well as partially under a few receivers. We use Ricker wavelet and model plane wavefronts with incidence angles (90°, 70°, 45°, 20° and 5...
2016
Abstract: Earthquake Tectonics, by R. F. Stewart; #91009 (1991)
Search and Discovery.com
1991
Abstracts: Locating Microseismicity in Three-Dimensionally Heterogeneous Reservoirs; #90173 (2015)
Adam M. Baig, Ted Urbancic, Margaret Seibel, Vladimir Shumila
Search and Discovery.com
... by lithological tops interpreted from seismic cross-sections. Figure 2: A depth view of wavefronts (blue curves) and traveltime field (blue-yellow contours...
2015
Abstract: Performance of Seismic Arrays in the Presence of Weathering Layer Variations; #90254 (2016)
Jubran Akram, Abdullatif A. Al-Shuhail
Search and Discovery.com
... receivers. We use Ricker wavelet and model plane wavefronts with incidence angles (90o, 70o, 45o, 20o and 5o) on a 12-element equally weighted array...
2016
Abstract: Influence of Error in Estimating Anisotropic Parameters on VTI Depth Imaging; #90255 (2017)
S. Y. Moussavi Alashloo, D. P. Ghosh, W. Y. Wan Ismail
Search and Discovery.com
... the influence of anisotropic errors on the imaging. Comparing the isotropic and VTI traveltimes demonstrates a considerable lateral difference of wavefronts...
2017
Abstract: Regular Grids Travel Time Calculation A Practical Huygens Wavefront Expansion Approach; #90187 (2014)
Zhengsheng Yao, Mike Galbraith, and Randy Kolesar
Search and Discovery.com
...-arrival traveltimes and the inability to track wavefronts arriving at later times is a drawback of this method. In complex velocity structures...
2014
Acoustic method of through-tubing cement bond evaluation based on Mie resonances
Search and Discovery.com
N/A
Getting Something for Nothing: Noise Attenuation in an Aliased World; #41291 (2014)
David C. Henley
Search and Discovery.com
... energy. The offending noise can then be effectively estimated and removed by application of various processing techniques. Even when the noise wavefronts...
2014
1990
Multifocusing Stack Technique for Subsurface Imaging, #40749 (2011)
Sunjay Sunjay,
Search and Discovery.com
... in the conventional CMP stacking. Analytical expressions (based on the spherical representation of wavefronts) describe the moveout correction...
2011
Abstract: Prestack Signal Enhancement by Non-hyperbolic MultiFocusing; #90187 (2014)
Evgeny Landa, Alex Berkovitch, and Kostya Deev
Search and Discovery.com
... angle of the normal ray β and the radii of curvature Rcre and Rcee of the two fundamental wavefronts, namely, normal incident point and normal waves...
2014
Exact kinematic behavior of the P-SV converted wave in a vertical transversely isotropic medium
Guillaume Cambois
International Meeting for Applied Geoscience and Energy (IMAGE)
... 𝜃0 = Figure 1: qP and qSv wavefronts for the Greenhorn Shale (Thomsen and Dellinger, 2003): γ0 = 2.05, ε = 0.256 and δ = –0.05. The qP phase angle...
2023
Know Before You Go!
Lars Zühlsdorff, Trond Haugland
GEO ExPro Magazine
... words, wavefronts rather than rays are propagated through the model, which is much closer to what is happening in the field (and much more efficient...
2021
Traveltime Computations for Locating the Source of Micro Seismic Events and for Forming Gridded Traveltime Maps
John C. Bancroft
Search and Discovery.com
... is suitable for locating microseismic events, mapping traveltimes that are computed along raypaths to gridded times, or for propagating first arrival...
Unknown
Traveltime Computations for Locating the Source of Micro Seismic Events and for Forming Gridded Traveltime Maps
John C. Bancroft
Search and Discovery.com
... is suitable for locating microseismic events, mapping traveltimes that are computed along raypaths to gridded times, or for propagating first arrival...
Unknown
Abstract: Spectral-element Simulations of Elastic Wave Propagation in Exploration and Geotechnical Applications; #90187 (2014)
Lin Zheng, Qi Zhao, Qinya Liu, Bernd Milkereit, and Giovanni Grasselli
Search and Discovery.com
... for all simulations are shown on the right panels with wavefronts identified and labeled. The effects of water layer and the salt-dome geometry are clearly...
2014
Abstracts: Application of CSP Gather Modeling for Determination of Velocity Smoothing Operator for Prestack Kirchhoff Depth Migration; #90173 (2015)
Hassan Khaniani and John C. Bancroft
Search and Discovery.com
... wavefronts initiated from the scatter point for times of 0.3s, 0.6s and 0.9s are computed. After applying a band pass filter by frequencies of 0 Hz...
2015