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The AAPG/Datapages Combined Publications Database
Showing 31,890 Results. Searched 195,387 documents.
Mainstream Mantle Convection: A Geologic Analysis of Plate Motion
T. H. Nelson , P. G. Temple
AAPG Bulletin
..., plus full spreading rate of ridge, S; and velocity of ridge migration VR is equal to VM + S/2. (Arrows are proportional to flow velocities.) Fig. 4...
1972
ABSTRACT: DEPTH IMAGING VELOCITY ESTIMATION CASE HISTORY IN A CHALLENGING AREA OF CALIFORNIA; #90014 (2003)
Fliedner, Moritz, Dimitri Bevc, Robert Clapp
Search and Discovery.com
...ABSTRACT: DEPTH IMAGING VELOCITY ESTIMATION CASE HISTORY IN A CHALLENGING AREA OF CALIFORNIA; #90014 (2003) Fliedner, Moritz, Dimitri Bevc, Robert...
Unknown
A Robust Gradient for Long Wavelength FWI Updates
Jaime Ramos-Martinez, Sean Crawley, Kathy Zou, Alejandro Valenciano, Lingyun Qiu, Nizar Chemingui, Andrew Long
Petroleum Exploration Society of Australia (PESA)
... the migration isochrones that dominate the gradient in heterogeneous media, thereby accommodating low wavenumber updates in the velocity model beyond...
2016
Abstract: Imaging Scattered Seismic Energy in Alberta Oil Sands; #90187 (2014)
Andrew V. Barrett
Search and Discovery.com
.... Introduce the change of variable τ = t - tm , where tm(x,xs,xr) is a reference time. In the case of time migration, tm is taken to be the two way travel time...
2014
Seismic Migration: Part 7. Geophysical Methods
Ken Larner, David Hale
AAPG Special Volumes
... that is homogeneous (constant P-wave velocity) with the exception of an isolated boulder at some depth. Also shown are the straight ray paths traveled...
1992
Slide Rule Seismic Computations
Robert H. Mansfield
Oklahoma City Geological Society
... of velocity assumptions in plotting seismic data. Using different mathematical functions, one may assume that the velocity remains constant...
1958
A Comparison of Depth Conversion Methods in Buntal Gas Field, Block B, Natuna Sea, Indonesia
Irfan Yuliandri Syukri, John Hughes, Medi Medianesterian
Indonesian Petroleum Association
... and depth is established (assumes a depth constant compaction factor (k)). The increase of velocity with depth due to compaction is a measurable...
2014
-- no title --
user
Search and Discovery.com
... in the data. To develop a velocity model for pre-stack depth migration (PSDM) we integrated all available sources of velocity and geological information...
Unknown
-- no title --
user
Search and Discovery.com
... in the data. To develop a velocity model for pre-stack depth migration (PSDM) we integrated all available sources of velocity and geological information...
Unknown
Abstract: Depth Velocity Model Optimization Using Beam Migration in a Mediterranean Field Offshore Egypt, by Ahmed El Bassiony, Bertrand Caselitz, Vira Matsourak, and Charles Zeltser; #90105 (2010)
Search and Discovery.com
2010
3-D Velocity Model Building via Iterative One-Pass Depth Migration
I.F. Jones
CSPG Special Publications
...3-D Velocity Model Building via Iterative One-Pass Depth Migration I.F. Jones 1994 54 55...
1994
Chapter 10-part 3: 3-D Depth Image Interpretation
William L. Abriel, Joseph P. Stefani, Robert D. Shank, David C. Bartel
AAPG Special Volumes
... in spatially smooth RMS velocities are generally not harmful in time migration, cumulative errors in the local interval velocity are leveraged and magnified...
2011
Section 2: Improvement of Seismic Images of Complex Tectonic Structure in Deep Water with Research-Level Processing Sequences
John Miller and Roland von Huene
AAPG Special Volumes
... Figure 2.3B using velocities determined from constant-velocity migration analysis (Figure 2.3F) End_Page 4-------------------------- produces greater...
1986
Seismic Imaging Improvements in the Bolivian Fold-and-Thrust Belt Through Psdm
A. Rocha, J. Subia
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
... 8000 m (below) migration aperture (crest to the left end of the line) Postack migration test Due to the lateral velocity variation, the minimum...
2006
Abstract: 3D Seismic Imaging in the Pakistan Foothills: A Case History; #90172 (2014)
Victor Dolgov, Rob Vestrum, Jon Gittins, Géza Wittman
Search and Discovery.com
... are inherently managed through the Kirchhoff-migration process. This velocity-analysis methodology is illustrated by the screen captures from the velocityanalysis...
2014
True Amplitude Preserved Multi-Azimuth Pre-Stack Depth Migration for Structural and Reservoir Characterization (Sisi-Nubi Field, Indonesia)
M. Baturin, F. Bertini, J. Bonnafé, A. Riou, S. Birdus, Y. Yin
Indonesian Petroleum Association
... in the shallow interval; these velocity and imagery artifacts were not fully solved by the initial 2004-2005 Pre-Stack Time Migration processing (Fig. 5...
2011
Constant Velocity Case
A. J. Oden
Oklahoma City Geological Society
...Constant Velocity Case A. J. Oden 1958 301 302 Most of the speakers on this panel have had to brush up on the very latest methods, but the principal...
1958
Procesamiento de Datos Sismicos en Areas de Topografia Irregular: Caso Historico en el Flanco Sur Andino [PAPER IN SPANISH] Seismic Data Processing in Areas of Irregular Topography: A Case History in the Andean Southern Flank: Abstract
Eulogio del Pino, Jose Licheri, Sergio dos Santos
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
... The main problen was to compute short and long wavelength static and dinamic corrections to a constant datum below and above the surface. Velocity...
1994
A New Approach to Imaging and Pore Pressure Analysis in Depth Domain in Complex Geologic Areas: Use of Rock Physics Constrained Velocity Modeling and Reverse-Time Migration
Search and Discovery.com
N/A
UNDERSTANDING THE FRESNEL ZONE
Search and Discovery.com
N/A
Abstract: Migration of Velocity Spectra: An Example from the Philippines
Craig J. Beasley, Rolf Klotz
Geological Society of Malaysia (GSM)
...Abstract: Migration of Velocity Spectra: An Example from the Philippines Craig J. Beasley, Rolf Klotz 282 Geological Society of Malaysia - Petroleum...
1991
Seismic Modeling of Porosity Distribution in a Miocene Reef, Salawati Island, Indonesia
William T. Valenta
Indonesian Petroleum Association
... constant velocity over the Salawati A field. Figure 2. Schematic Stratigraphic Section Feasibility Study There are some prerequisites for the detailed...
1979
Abstract: Kirchhoff Imaging with Adaptive Greens Functions for Compensation for Dispersion, Attenuation, and Velocity Imprecision; #90187 (2014)
Andrew V. Barrett
Search and Discovery.com
... frequencies appear to propagate at the velocity of the asymptotic high frequency. If we know the attenuation constant ‘Q’, and if the model for attenuation...
2014
Limitations of Reflection Seismograph
L. E. Nugent, Jr.
AAPG Bulletin
... increases or decreases the rigidity and compressibility because the density remains essentially constant. Even with ideal conditions of velocity control...
1953
Representation of Bed Configurations in Depth-Velocity-Size Diagrams
John B. Southard
Journal of Sedimentary Research (SEPM)
... than one mean velocity at constant flow depth, basically because a low velocity can produce a very rough bed configuration (ripples or dunes...
1971