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The AAPG/Datapages Combined Publications Database
Showing 660 Results. Searched 195,364 documents.
A Time Migration Before Stack
Richard Cooper, Malcolm Hobson
Geological Society of Malaysia (GSM)
... to the true vertical velocity MIGRATION FOR OPTIMUM VELOCITY ANALYSIS AND STACKING Velocity Analysis Normal moveout Dip Moveout Velocity Analysis Stack...
1991
AAPG Memoir 76, Chapter 18: Velocity Estimation for Pore-Pressure Prediction
David W. Bell
AAPG Special Volumes
... showing hyperbolic moveout with offset; (C) CMP gather after normal moveout correction using stacking-velocity picks; (D) constant stacking...
2001
Migration Velocity Analysis by Migration of Velocity Spectra
Craig J. Beasley, Rolf Klotz
Southeast Asia Petroleum Exploration Society (SEAPEX)
... reasonably be met, even for large 3-D surveys. Migration velocity estimates are typically based on stacking velocities obtained from dip moveout (DMO...
1992
Seismic Velocities, by D.S. MacPherson, #40150 (2005).
Search and Discovery.com
2005
A Regional Velocity Cube for Depth Conversion on the Northwest Shelf
Maighréad Ní Dheasúna, Mark Ballesteros, James Leven
Petroleum Exploration Society of Australia (PESA)
... this hiQbe'M velocity cube, data, and ca n also provide useful indications moveout, and to effectively stack reflection and illustrates some...
2012
An Interpreter's Guide to Improvements in Depth Imaging through Model-Based Velocity Estimation and Refinement
Andy Furniss
Petroleum Exploration Society of Australia (PESA)
... world, where at least one of these assumptions is invalid, seismic raypaths will show non-hyperbolic moveout causing stacking velocity and RMS velocity...
1999
Imaging Beneath Complex Structure
K. Larner, B. Gibson, and R. Chambers
AAPG Special Volumes
.... For such an inhomogeneous velocity structure, shortcomings in common midpoint stacking are directly related to highly non-hyperbolic moveout. As with migration...
1983
Imaging Beneath Complex Structure: Case History: ABSTRACT
Ken Larner, Bruce Gibson, Ron Chambers
AAPG Bulletin
..., shortcomings in CDP stacking are directly related to highly non-hyperbolic moveout. As with migration velocity, no proper stacking velocity can...
1981
Imaging Beneath Complex Structure: A Case History: ABSTRACT
Bruce Gibson, Ken Larner, Ron Chambers
AAPG Bulletin
... are related directly to highly nonhyperbolic moveout. As with migration velocity, no proper stacking velocity can be developed for these data, even from...
1983
Seismic Imaging in Anisotropic Media. or... "A Better Way to Moveout and Migrate Long Offset Data"
Rolf Klotz, Martin Bayly, Sue Downie, Swee Leng
Indonesian Petroleum Association
... 2000 1 8 Anisotropic effects are observed for the moveout velocity on surface seismic data as reflection angles increase. An alternative...
2000
Abstract: Seismic Imaging of Imbricate Structures in Mountainous Area: Case Studies; #90211 (2015)
Nanxun Dai, Oz Yilmaz, Weizhong Wang, and Jie Zhang
Search and Discovery.com
... velocity variations prohibits analytic or linear inversion methods to delineate the near-surface model. Additionally, the nonhyperbolic moveout behavior...
2015
An Interpreter's Guide to Improvements in Depth Imaging Through Model-Based Velocity Estimation and Refinement
Andy Furniss
Indonesian Petroleum Association
... will show non-hyperbolic moveout causing stacking velocity and RMS velocity to differ. This produces inaccurate results from the Dix equation. In 2D...
2000
Star: Shallow Time Anomaly Replacement
Michael O. Marcoux, Lee Lu
Southeast Asia Petroleum Exploration Society (SEAPEX)
.... The choice of the model was made to examine a range of moveout complexity while using nominal velocity-depth values. Figure 2. Model depth section...
1982
The Application of Image Processing Techniques for Complex Structures
V. Sudhakar, I. T. McMahon
Indonesian Petroleum Association
... separated by the simple but critical process of Normal Moveout correction (NMO) and Common Mid-point (CMP) stack. NMO and CMP stacking require...
1987
Hybridised Weighted Boot-Strap Differential Semblance
Hamish Wilson, Lutz Gross
Petroleum Exploration Society of Australia (PESA)
... of this final model is velocity analysis. Conventional normal moveout (NMO) velocity analysis is utilised to produce a move-out or stacking velocity field...
2016
ABSTRACT: 3-D Imaging Beneath Water-Bottom Channels in the Gippsland Basin: A Case Study, by K. T. Jerry Young, William A. Schneider Jr., Becky G. Houston, Roy E. Clark Jr., and John R. Moore; #91019 (1996)
Search and Discovery.com
1996
Abstract: 2D Depth Velocity Analysis without Tomography; #90187 (2014)
J. Patrick Butler and Randy Kolesar
Search and Discovery.com
... Engineering Partnership, 6-12 May 2013, Calgary, AB, Canada elsewhere. The velocity field is a unique stacking velocity at each CDP and each time...
2014
A Southern North Sea Multi-Survey preSDM using Hybrid Gridded Tomography, #41592 (2015).
Ian Jones, Emma Evans, Darren Judd, Alan Campbell, Steve Elam
Search and Discovery.com
... The initial depth velocity model was built from stacking velocities converted to interval velocity in depth. The water bottom was picked and gridded...
2015
Seismic Multiples can be Responsible for Completely Masking Underlying Data: A Case Study Shows a Remarkable Example of Hidden Information Revealed, by John DeWildt, Derek Skoyles, Halle Rhea, and Nigel Payne; #90052 (2006)
Search and Discovery.com
2006
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
Gaining Insight into Formation Anisotropy Using Full Azimuth Imaging and Analysis Tools
Duane Dopkin, Anat Canning, Philip Neri
Indonesian Petroleum Association
... a detailed automatic residual moveout/velocity analysis in a robust and effective way. MULTI AZIMUTH VELOCITY ANALYSIS There are two ways to deal...
2012
Abstract: Impact of Accurate Velocities from Signal Fidelity Enhancement for Reliable Seismic Interpretation - Example from Kuwait, by Wael A. Zahran, Riyanto Purbokusumo, Nawaf Al-Muatairi, and Hamed M. Hameed; #90105 (2010)
Search and Discovery.com
2010
Abstract: An Analysis of the Benefits of 3D Pre-Stack Time Migration (Paper 11)
Peter Whiting
Geological Society of Malaysia (GSM)
.... Multivalued moveout velocities are still present after NMO/DMO due to the approximate velocity fields used in their application. It can also be shown...
1996
Velocity Analyses of Near Seafloor Strata Based on Multichannel Seismic Data from the Tonga Platform
Jeffrey E. Cole, Dennis M. Mann
Circum Pacific Council Publications
... were produced of reflector coherency as a function of stacking velocity and two-way travel time (Figure 6). These coherency plots were used...
1985
Abstract: A Geophysical Appraisal of the East Spar Gas/Condensate Field
Adam Craig
Petroleum Exploration Society of Australia (PESA)
... was constructed by detailed interpretation of gas/condensate field the WA-214-P joint normal moveout velocities from seismic change. Such gas sands...
1997