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The AAPG/Datapages Combined Publications Database
Showing 765 Results. Searched 200,357 documents.
Current Trends in Geophysics
H. E. Stommel, J. M. Graul
Indonesian Petroleum Association
... of in this connection, wave equation processing is by no means limited to this important concept. Improved velocity estimates, stacking procedures, coherency...
1978
Machine learning-based residual moveout picking
Farhad Bazargani, Wenjun Zhang, Anu Chandran, Zaifeng Liu, Harry Rynja
International Meeting for Applied Geoscience and Energy (IMAGE)
... picking with minimum human intervention and no need for editing. INTRODUCTION In travel time tomography for velocity model building, residual moveout (RMO...
2022
Large-Scale Pore Pressure Prediction After Pre-Stack Depth Migration in the Caspian Sea (Geophysics Paper 24)
Norbert van de Coevering, Hazim Hameed Al-Dabagh, Liau Min Hoe, Tony Jolly
Geological Society of Malaysia (GSM)
... with a 2nd order stacking velocity correction. Such an automated velocity analysis was performed using a grid of 8 Inlines x 8 Crosslines (100 m x 100 m...
2008
Abstract: Estimation of Group Velocity using Slant Stack Generalized S Transform Based Method; #90174 (2014)
Roohollah Askari, Robert J. Ferguson, and Kristof DeMeersman
Search and Discovery.com
...Abstract: Estimation of Group Velocity using Slant Stack Generalized S Transform Based Method; #90174 (2014) Roohollah Askari, Robert J. Ferguson...
2014
G. Non-Normal Incidence Reflections and the Determination of Lithology - Use of Shear Waves and Amplitude with Offset
Norman S. Neidell
AAPG Special Volumes
... the compressional velocity arriving at the same time and exists at moderate offsets. Compressional modeling would therefore be unable to match the moveout...
1987
Abstract: First-Arrival TomoStatics and Residual Statics for Near-Surface Corrections; #90211 (2015)
Jie Zhang, Oz Yilmaz, and Nanxun Dai
Search and Discovery.com
... intermediate datum, and then back to a floating datum with a constant replacement velocity. We shall then apply the tomostatics to the far-offset...
2015
Abstract: Fractures Detection Using Multi-Azimuth Diffractions Focusing Measure: A Feasibility Study from the Arab D Reservoir, by Abdulfattah A. Aldajani and Sergey Fomel; #90105 (2010)
Search and Discovery.com
2010
High-End Model Building Techniques for Revealing a Pre-Carbonate Reservoir Offshore East Natuna Basin, Indonesia
Jun Wang, Yonghe Guo, Yitao Chen, Muhammad Nauvall Juliansyah, Nick Crabtree
Indonesian Petroleum Association
... information and dense residual moveout (RMO) information to produce an accurate velocity update for the deep section. The imaging uplift brought...
2023
Abstract: Anisotropic Depth Imaging and Interpretation in Thrust-Belt Exploration, by Don Lawton; #90073 (2007)
Search and Discovery.com
2007
Geomechanical and Geophysical Analysis of a Wattenberg Field through Wavefield Re-Datuming and Inversion
Jyoti Behura, Pete Smith, Oscar Quezada
Unconventional Resources Technology Conference (URTEC)
..., we aim to extract rock properties derived from AVO, velocity, and attenuation analyses that play key roles in the characterization and development...
2016
A Comprehensive Approach to Depth Imaging in Thrust Belt Environments
Ron Schmid, Brian Link, Patrick Butler
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
... imaging in thrust belt environments Ron Schmid*, Brian Link, Patrick Butler; Kelman Seismic Processing SUMMARY A novel, migration velocity analysis...
1997
2D Survey Earth Model Building and Depth Imaging Using 3D Grid-Based Tomography Technology
Eric Pearson, Suyang Chen
Indonesian Petroleum Association
... direction). In this area, the geologic structure and associated seismic velocity model are extremely complex. In order to achieve the best possible...
2012
Abstract: Constraining Anisotropy Lessons from 2D Modeling; #90211 (2015)
Rob Holt
Search and Discovery.com
... are difficult to determine with precision. Velocity moveout and anisotropic moveout look identical on migrated gathers when reflection angles are less than 30...
2015
Abstracts: True-Amplitude PS Prestack Time Migration via 5D Interpolation; #90173 (2015)
Peter W. Cary, Albert Zhang
Search and Discovery.com
... of the velocities obtained from stacking velocity analysis can be used in CPSTM. Thus, only the PS-converted-wave velocity needs to be estimated precisely...
2015
Abstract: Structurally-Consistent Interval Velocity Variation with Azimuth; #90187 (2014)
Darren Schmidt, Alicia Veronesi, Chris Davison, and Jeff Durand
Search and Discovery.com
... Dix equation and analytic treatment of normal moveout velocity for anisotropic media: Geophysical Prospecting, 47, 117-148. Tsvankin, I., 1997...
2014
Developing an Exploration Tool in a Mature Trend: A 3D AVO Case Study in South Texas
Mark E. Gregg, Charles T. Bukowski, Jr.
Houston Geological Society Bulletin
... are required to observe them. A large non-exclusive 3D survey was reprocessed using non-hyperbolic moveout and resulting angle stacks were analyzed...
2001
Where Is My Horizontal Well? Use of Borehole Seismic Where Velocities Vary Laterally
Agus Muharam, Frank Musgrove
Indonesian Petroleum Association
... horizontal wells (out to a kilometer or more) are becoming common in field developments. In areas where overburden velocity varies laterally, it becomes...
1998
Abstract: Converted Wave Receiver Statics from First Break Mode Conversions; #90171 (2013)
Kristof De Meersman and Marcelo Roizman
Search and Discovery.com
... will often degrade the initial velocity estimates that are needed to produce the converted wave stack. Method Our method is largely based on findings...
2013
Abstract: Converted Wave Receiver Statics from First Break Mode Conversions; #90171 (2013)
Kristof De Meersman and Marcelo Roizman
Search and Discovery.com
... will often degrade the initial velocity estimates that are needed to produce the converted wave stack. Method Our method is largely based on findings...
2013
Seismic Evidence for Widespread Possible Gas Hydrate Horizons on Continental Slopes and Rises
Thomas H. Shipley, Mark H. Houston, Richard T. Buffler, F. Jeanne Shaub, Kenneth J. McMillen, John W. Ladd, J. Lamar Worzel
AAPG Bulletin
...). Data were collected with programmed increasing gain with time. Trace-by-trace gain normalization, normal moveout, stacking, filtering, and automatic...
1979
NMO Application in VTI Media: Effective and Intrinsic Eta (Geophysics Paper 6)
Joel Starr, Maz Farouki
Geological Society of Malaysia (GSM)
... for transversely isotropic media. Geophysics, 60, 1550-1566. Alkhalifah, T., 1997. Velocity analysis using nonhyperbolic moveout in transversely isotropic media...
2008
Seismic Imaging at Conger: Lessons Learned in Gulf of Mexico Subsalt Imaging
Thomas C. Bergeon, Brad A. Robison
GCAGS Transactions
... areas of non-hyperbolic moveout and may be associated with near-surface velocity effects. Comparisons of pre-stack and post-stack data show some minor...
2006
Abstract: To TTI or not to TTI? Semi-Automated 3D Tomographic Velocity Analysis in the Canadian Foothills: A Case History; #90211 (2015)
Sylvestre Charles, David Mitchell, Rob Holt, Jiwu Lin, and John Mathewson
Search and Discovery.com
... in residual moveout that are difficult (if not impossible) to dissociate from residual velocity heterogeneity errors. Even though the isotropic depth...
2015
Abstract: Greedy Least-Squares and its Application in Radon Transforms; #90171 (2013)
Juefu Wang and Mark Ng
Search and Discovery.com
... iterations of the greedy method with minimum misfit. References Hampson, D., 1986, Inverse velocity stacking for multiple estimation: 66th Ann...
2013
The Application of a Linear Increase of Velocity with Depth to Seismic Dip Migration
J. E. Stones
Oklahoma City Geological Society
...-T = the moveout time of the reflection L = the spread length The values for (Vo) and (a) can be determined from the time-depth curve of one or more velocity...
1958