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Welcome to the new Datapages Archives

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The AAPG/Datapages Combined Publications Database

Showing 83 Results. Searched 200,293 documents.

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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

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

Interpretation of first-arrival times of borehole acoustic measurements acquired in high-angle wells using 3D eikonal numerical simulations

Feiyue Xia, Carlos Torres-Verdín

International Meeting for Applied Geoscience and Energy (IMAGE)

... to simulate first-arrival times at each azimuthal receiver mounted around the logging tool in HA/HZ wells. Simulated wavefronts and first-arrival...

2024

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

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

Compressive sensing framework using the linear radon transform for 3D ultrasonic data reconstruction in a pinch-out reservoir model

Pedro C. de Assis, Romulo B. da Silva, Irineu A. Lima Neto, Alan C. Galante, Alexandre L. Campi, Alessandro R. de Oliveira, Roseane M. Missagia, Marco A. R. Ceia

International Meeting for Applied Geoscience and Energy (IMAGE)

... summation over straight lines with the integration paths constrained by the ray parameters; moreover, transforming planar wavefronts into peaks in the Radon...

2022

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

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

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

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