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The AAPG/Datapages Combined Publications Database
Showing 71 Results. Searched 195,354 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
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: Raypath-Consistent Shear Wave Statics; #90224 (2015)
Raul Cova, David Henley, and Kris Innanen
Search and Discovery.com
... on the assumption of nearly-vertical raypaths through the LVL responsible for statics. However, the low velocity of S-waves magnifies the delays...
2015
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: 2D Depth Velocity Analysis without Tomography; #90187 (2014)
J. Patrick Butler and Randy Kolesar
Search and Discovery.com
... as epsilon changes A static shift is being used to correct moveout. Reflector 1 Reflector 2 Reflector 3 3 reflectors Bedding direction Raypaths vel...
2014
Finite Difference Modelling: Part IV
Lasse Amundsen, Ørjan Pedersen, Martin Landrø
GEO ExPro Magazine
... velocity, the wave originating at the source expands in a series of spherical wavefronts centred on that source; a consequence of Fermat’s principle...
2019
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
Physical Basis of Reflection Seismology
Bruce S. Hart
Special Publications of SEPM
...) . At the left, an initial acoustic pulse is generated . The energy expands out as circular wavefronts (in an isotropic ediu ) like ripples in a pond, although...
2000
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
II. Migration to Remedy Geometric Distortions
Robert E. Sheriff
AAPG Special Volumes
... of the reflections at the different locations and regarded the common tangent to those arcs as the reflecting interface. The idea of striking wavefronts...
1981
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
Application of finite difference eikonal solver for traveltime computation in forward modeling and migration
Amir Mustaqim Majdi, Seyed Yaser Moussavi Alashloo, Nik Nur Anis Amalina Nik Mohd Hassan, Abdul Rahim Md Arshad, Abdul Halim Abdul Latiff
Geological Society of Malaysia (GSM)
... zones have been covered by the wavefronts. Table 1: Parameters applied on the seismic acquisition simulation in Tesseral Pro software. Acquisition scheme...
2021
Outlining Shale Masses By Geophysical Methods
A. W. Musgrave , W. G. Hicks
AAPG Special Volumes
... in the same manner, and the wavefronts were plotted on the distance-versus-depth plot. The difference between the two plots indicates that a large shale...
1968
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