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The AAPG/Datapages Combined Publications Database
Showing 193 Results. Searched 200,293 documents.
ABSTRACT: Optimising Seismic Acquisition Through Combined Ray Tracing and Structural Modelling; #90007 (2002)
Stuart C. Bland, Michael C. A. Goodwin
Search and Discovery.com
... are recorded and the optimum survey orientation is chosen. In compressional tectonic settings where wavefront distortion typically occurs at layer...
2002
New stability constraints for pseudo-acoustic finite difference TTI modelling and inversion
Rodrigo Fuck, Lorenzo Casasanta, Marcel Nauta
International Meeting for Applied Geoscience and Energy (IMAGE)
... to ad-hoc solutions found in the literature, we propose a new systematic and automated approach to generate shear-wave velocity models needed...
2024
Prestack Depth Imaging Within the Makassar Straits, Eastern Kalimantan, Indonesia
Chris Willacy, Suryadi Oemar, A. Edy Hermantoro, Paul Gilleran
Indonesian Petroleum Association
.... Thrusting stacks rocks of higher seismic velocity over lower velocity material. Such a velocity contrast results in strong wavefront attenuation...
2000
Diving wave tomography: Velocity modelling using first arrival traveltime
Amatul Syafi Abdul Basit, Abdul Rahim Md Arshad, Arulini Permalu
Geological Society of Malaysia (GSM)
... the relationship between velocity with time and space, the output from tomography plays a crucial role to align data between time and depth domain...
2022
ABSTRACT: Multiple suppression by the CRS technique; #90051 (2006)
Juergen Pruessmann, Martin Tygel, Fernando Gamboa, Radu Coman
Search and Discovery.com
... from a subsurface model, or from seismic data attributes. Such information is required in the case of land data, where high -velocity rocks may...
Unknown
An immersed boundary topography approach for TTI acoustic propagation
Edward Caunt, Rhodri Nelson, Tim MacArthur, Fabio Luporini, Gerard Gorman
International Meeting for Applied Geoscience and Energy (IMAGE)
... H1 . (5) Velocity parameters c pn and c px are P-wave velocities as determined by normal move-out and in the plane of isotropy respectively, e and d...
2024
Physical Basis of Reflection Seismology
Bruce S. Hart
Special Publications of SEPM
... to the wavefront . The wavefront will expand until it reaches so e interface, here located at depth "B", that causes so e of the energy to be reflected back...
2000
Abstract: Advanced Seismic Imaging Application of Common Reflection Surface Stack (CRS) Technology on 3D Seismic Data of Tembungo Field, Offshore Sabah, Malaysia (Paper 4)
Ahmad Riza Ghazali, Nor Azhar Ibrahim, M. Firdaus A. Halim
Geological Society of Malaysia (GSM)
... are emergence angle and wavefront curvatures to increase SIN ratio. Therefore, it does not rely on accurate velocity model to focus images and made them...
2003
Seismic Stratigraphy — Lodgepole Play Examples
John A. Andrew
Montana Geological Society
... frequency by the estimated rock velocity. He also says that lateral resolution is a function of both wavelength and depth. Energy reflected...
1996
Refraction tomography at the Nova Ni-Cu mine
Ian James, Graeme Hird, Andrew Fitzpatrick
Petroleum Exploration Society of Australia (PESA)
... are applied to account for the near-surface variations in refractor velocity and depth. This was performed using several methodologies, from layer-based...
2019
Australian Insights into Streamer Technology Innovations
Andrew Long
Petroleum Exploration Society of Australia (PESA)
..., - 20 -10 40 ;/~1\ v a m Depth - - 15m Depth Frequency (Hz) 60 80 100 I ~~ \I / I \ \V \ I 120 ....... 20 40 Particle Velocity...
2009
Multifocusing Stack Technique for Subsurface Imaging, #40749 (2011)
Sunjay Sunjay,
Search and Discovery.com
... constitutes a key first step that facilitates the estimation of a velocity model for depth imaging. For these reasons, improving the quality of time...
2011
Ground Penetrating Radar Enhances Analogs, by John McBride, Colby Hazard, Scott Ritter, Thomas Morris, David Tingey, Bill Keach, Jani Radebaugh, Clayton Chandler, Karl Arnold, and Gene Wolfe; #41375 (2014).
Search and Discovery.com
2014
Anisotropic depth migration in the Colombian Llanos Foothills as a key to understanding the structure in depth
emamedov
Search and Discovery.com
... with high dips and vertical and lateral velocity contrasts, giving a considerable lateral movement in the images in depth when we correct for seismic...
Unknown
Transfer learning seismic and GPR diffraction separation with a convolutional neural network
Alexander Bauer, Jan Walda, Dirk Gajewski
International Meeting for Applied Geoscience and Energy (IMAGE)
... the SeismicUnix program susynlv, which generates synthetic seismograms for linear velocity functions. We automatically randomized the most important input...
2022
Aspects of Seismic Resolution: Chapter 1
R. E. Sheriff
AAPG Special Volumes
..., and uncertainties imposed by velocity, stacking, and two-dimensional assumptions. Denham, L. R., and R. E. Sheriff, 1980, What is horizontal resolution...
1985
Multiple Suppression by the CRS Technique
Search and Discovery.com
N/A
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
...Abstracts: Application of CSP Gather Modeling for Determination of Velocity Smoothing Operator for Prestack Kirchhoff Depth Migration; #90173 (2015...
2015
Abstract: Seismic Data Reconstruction Using the Nonlinear Beamforming Framework; #91204 (2023)
Yimin Sun and Quentin Hirsch
Search and Discovery.com
... of them. Every missing data point in the spatial dimension on a wavefront is reconstructed via a weighted summation of a linear interpolation...
2023
Abstracts: Locating Microseismicity in Three-Dimensionally Heterogeneous Reservoirs; #90173 (2015)
Adam M. Baig, Ted Urbancic, Margaret Seibel, Vladimir Shumila
Search and Discovery.com
... the evolution of the wavefront with time. In this paper, we discuss how 3D velocity models are constructed, the implementations, and the application...
2015
Determination of Velocity Model by Using NIP-Wave Tomographic Inversion: Application to Synthetic and Real Data
A. Hendriyana, R. Sule, Y. Akbar, L.A. Poerwaka, T.A. Sanny, Sardjito, Waluyo, Adriansyah
Indonesian Petroleum Association
... heterogeneous and appropriate for ray tracing. The velocity is used as first approximation of velocity field for pre-stack depth migration and updates...
2009
1990
Abstracts: Seismic Wave Propagation and Imaging in Heterogenous Media; #90173 (2015)
Yijian Meng, Emmanuel Bongajum, and Bernd Milkereit
Search and Discovery.com
... wavefront is elliptic (fast and slow direction), hence the phase velocity and group velocity are different in these circumstances. In addition...
2015
Sensitivity analysis of acoustic waveform inversion to velocity anomalies in the near-surface using the Frchet derivative
Ao Cai, Colin A. Zelt
International Meeting for Applied Geoscience and Energy (IMAGE)
... of wavefront healing. In this paper, we analyze the sensitivity of WI to velocity anomalies by first comparing the amplitudes of wavefield perturbations...
2022
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)
... to recover the data in the original grid. We also exploited the linear Radon transform by imposing wavefront constraints aiming to obtain a sparser...
2022