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The AAPG/Datapages Combined Publications Database
Showing 34,497 Results. Searched 200,685 documents.
Chapter 7: Bounding Surfaces in Eolian Sediments
S. G. Fryberger
Rocky Mountain Section (SEPM)
... and avalanche deposits. Growth bounding surfaces originate in the growth and aerodynamic adjustment of bedforms and other eolian facies. Stacking surfaces...
1990
Application of Fourier Transform Infrared Spectroscopy to Silica Diagenesis: The Opal-A to Opal-Ct Transformation
S.B. Rice , H. Freund , W.-L. Huang , J.A. Clouse , C.M. Isaacs
Journal of Sedimentary Research (SEPM)
...), the relative prop rtions of opal-A and opal-CT can be determined, The progress of the transformation is marked by changes in slope of vs. depth or time when...
1995
Permeability prediction in chalks
M. Monzurul Alam, Ida Lykke Fabricius, Manika Prasad
AAPG Bulletin
..., but the effect on velocity is only minor, unless recrystallization causes cementation at the grain contacts. Contact cementation thus increases velocity...
2011
Abstract: Depth Conversion Methodology using a Stochastic Velocity Model for the McMurray Formation; #90171 (2013)
Darren Hinks, Tom Cox, Stephanie Schmidt, Dale Vanhooren, and Sergei Filin
Search and Discovery.com
... conversion of the time seismic is often performed using layer cake velocity models where the velocities for each zone are extracted from the time/depth...
2013
Crosswell Seismic: Review of Field Operations, Survey Planning and Case History
Jeff Meyer, Randy Evans, Robert Martin, Cynthia L. Welch
West Texas Geological Society
... enhancing surface-seismic as was the application in this case study. Figure 1. Time Lapse Production Monitoring. Three velocity maps produced at differing...
2002
Tengiz field fault shadows mitigation with combined joint FWI-tomography, Q-tomography, and least-square migration
Tianjiang Li, King Sim Lee, Bin Gong, Kai Yang, Kai Zhang, Assem Bibolova, Zhanibek Katrenov
International Meeting for Applied Geoscience and Energy (IMAGE)
... Based Tomography resulted in a high-resolution subsurface velocity model. The successfully completed pilot demonstrated uplifts to the image quality...
2022
A seasonal-dependent water velocity model for the Gulf of Mexico
Claudio Bagaini
International Meeting for Applied Geoscience and Energy (IMAGE)
... or time-of-flight measurements? Direct measurements of the water velocity can be obtained with either PTC or time-of-flight sensors. I am using data...
2024
Seismic Stratigraphy and Global Changes of Sea Level: Part 5. Chronostratigraphic Significance of Seismic Reflections: Section 2. Application of Seismic Reflection Configuration to Stratigraphic Interpretation
P. R. Vail, R. G. Todd , J. B. Sangree
AAPG Special Volumes
... time-transgressive formation. Velocity Relations: It is necessary to determine lateral velocity variations of the geologic section (Fig. 2) to evaluate...
1977
Structure Test Holes Confirm Post-Paleozoic Relief as Indicated by the Seismograph in the Avonlea Area, Saskatchewan
H. B. Sawatzky, R. G. Agarwal, W. Wilson
CSPG Bulletin
... velocity down to this horizon (assuming seismic and geologic 'picks' are correct). This becomes quite evident when we examine the change in interval time...
1959
A seismic and petrophysics-guided approach to subsurface characterization of the NW Limerick Syncline in the Irish Zn-Pb Orefield
Victoria Susin, Aline Melo, Koen Torremans, Murray Hitzman, Mark Holdstock
International Meeting for Applied Geoscience and Energy (IMAGE)
.... a) Profile LK-11-02 in TWT after application of new stacking velocity model and post-stack time migration. b) Interpretation of the LK11-02 time section...
2024
Abstract: Fracture Detection Via Azimuthal Analysis of Seismic Data: Snake Oil or silver Bullet?; #90187 (2014)
Mike Perz, Peter Cary, Xinxiang Li, and Satinder Chopra
Search and Discovery.com
..., AB, Canada and P wave NMO velocity differences parallel and perpendicular to fractures, respectively), while the VVAZ and SWS responses depend...
2014
Eocene lowstand fan model, Basal Complex, Barbados: implications for geologic modeling
Larue, D.K., Lindholm, R.M, Sprague, A.R.G. and Bissell, C.R.
Geological Society of Trinidad & Tobago
... are present: sequence boundaries, candidate sequence boundaries, and surfaces formed by autocyclic processes. Fan stacking patterns are retrogradational...
1995
Fault Representation in Automated Modeling of Geologic Structures and Geologic Units: Chapter 10
Steven Zoraster
AAPG Special Volumes
... of the data point is adjusted in proportion to the total displacement of all those faults. In effect, the time or depth value of each data point used...
1992
Application of Sequential Offset Technique in Full Waveform Inversion; #42598 (2025)
Binggang Wang
Search and Discovery.com
... ray density in shallow layers and the effect of far-offset data on shallow velocity can result in inaccuracies during the iterative inversion...
2025
Seismic Stratigraphic Analysis of the Barnett Shale and Ellenburger Unconformity Southwest of the Core Area of the Newark East Field, Fort Worth Basin, Texas
Elizabeth T. Baruch, Roger M. Slatt, Kurt J. Marfurt
AAPG Special Volumes
... of the seismic expression of the karst and related faults resulted from a pushdown effect caused by a shallower low-velocity infill instead of actual...
2012
Advances in Depth Imaging Technology: Rock Physics Guided Migration of Seismic Data in 3D
Nader C. Dutta, Sherman Yang, Jianchun Dai
Indonesian Petroleum Association
... extra steps that are currently used to convert the migrated gather and velocity back to time domain to do further velocity analysis for pore pressure...
2012
Predicting Pore Pressure in Carbonates: A Review; #41830 (2016)
Sam Green, Stephen A. O'Connor, Alexander P. Edwards
Search and Discovery.com
... (PSTM) gathers combined with VSP data for time/depth conversion, a variety of velocity interpretations were generated; a) high density picked NMO, b...
2016
Application of poststack image enhancement with dip-guided selective stacking in southern Gulf of Mexico
Janet Ravelo-Cervantes, Ricardo Francisco Castrejon-Martinez, Julio Cesar Hernandez-Villalobos, Raul Ysaccis, Said Hernandez-Jaramillo, Doan Saavedra-Castaneda
International Meeting for Applied Geoscience and Energy (IMAGE)
...Application of poststack image enhancement with dip-guided selective stacking in southern Gulf of Mexico Janet Ravelo-Cervantes, Ricardo Francisco...
2022
Loss of Capacity, Not Competence, As the Fundamental Process Governing Deposition from Turbidity Currents
Richard N. Hiscott
Journal of Sedimentary Research (SEPM)
... of the flow according to fall velocity, with the finest grains returning t the body of the flow farthest from the head. If this effect were...
1994
Process Regime Changes Across a Regressive to Transgressive Turnaround in a Shelf–Slope Basin, Eocene Central Basin of Spitsbergen
Anna Ponten, Piret Plink-Bjorklund
Journal of Sedimentary Research (SEPM)
... stacking patterns and sedimentary facies. The regressive part preserves wave- and river-dominated deltaic deposits in a progradational to aggradational...
2009
Behavior of Fluids
Gerard Middleton, John B. Southard
Special Publications of SEPM
... moves in irregular and sinuous paths characteristic of turbulent flow, with the velocity changing unpredictably from time to time at any point...
1984
The effects of marine currents on seismic data
Gary Hampson
International Meeting for Applied Geoscience and Energy (IMAGE)
... that models the direct arrival time at an OBN from a stationary impulsive source in a current moving with velocity u . We can evaluate how the current affects...
2024
Chapter 8: Evaluation of Anomalous Pressuring and Gas Saturation Using 2-D and 3-D Visualizations of Well Log Information
Zun S. Jiao, Ronald C. Surdam
Montana Geological Society
...). The transit time, or velocity, recorded on a sonic log may be thought of mainly as a function of porosity, fluid characteristics, lithology...
1997
Computer Mapping of Pinnacle Reefs, Evaporites, and Carbonates: Northern Trend, Michigan Basin: Chapter 5
David E. Hamilton, Skye K. Henize
AAPG Special Volumes
... they draped the surface existing at the time of deposition. Briggs, L. I., and D. Z. Briggs, 1974, Niagara Salina relationships in the Michigan basin, in R.V....
1992
Abstract: What are you Interpreting? Is your Seismic Image Flawed?; #90211 (2015)
Rachel Newrick, Jim Pullishy, and Elvira Gomez
Search and Discovery.com
... and Colombia highlight the necessity for an accurate velocity model and illustrate the dramatic effect of a small percentage change in velocity. We show...
2015