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The AAPG/Datapages Combined Publications Database
Showing 30,483 Results. Searched 200,357 documents.
Velocity-depth trends in Mesozoic and Cenozoic sediments from the Norwegian Shelf: Discussion
Peter Japsen
AAPG Bulletin
... that no general velocity-depth function can be used when performing more accurate analyses like depth conversion of seismic data, pore-pressure...
2006
Azimuthal Variations in Reflection Seismic Data: Measurements Governed by the In-Situ Horizontal Stress Field and/or Vertical Aligned Fractures
Heloise B. Lynn, Walter S. Lynn
West Texas Geological Society
... Example of Azimuthal Traveltimes Figure 4 presents a graph of azimuthal velocity variation. The azimuth is defined as the direction from the seismic source...
2006
Seismic Attributes Analyses In Pre-Production Geothermal Reservoir Simulation
Search and Discovery.com
N/A
Transportation of Detritus by Moving Water
Filip Hjulstrom
Special Publications of SEPM
.... Such a study, however, is difficult because the rapid fluctuations in velocity and direction of flow must also be considered; the momentary extremes...
1955
An Analysis of Factors Controlling Deviations in Hydraulic Equivalence in Some Modern Sands
Richard Lowright, E. G. Williams, Frank Dachille
Journal of Sedimentary Research (SEPM)
... equilibrium; as grain size increases, the heavy: light settling velocity ratio decreases, a condition which can be predicted from pickup equations...
1972
Some Principles and Techniques Used in Reconstructing the Hydraulic Parameters of a Paleo-Flow Regime
Alan V. Jopling
Journal of Sedimentary Research (SEPM)
... are given in table 2, where D84, D50, D46 and the gradation coefficient r are based on sieve analyses and not on settling velocity analyses. The gradation...
1966
Eolian Shape-Sorting
Richard B. Mattox
Journal of Sedimentary Research (SEPM)
... than grains possessing lower sphericity values.(FOOTNOTE 2) They also stated that spherical grains show a stronger tendency to move under the influence...
1955
A new double-difference earthquake relocation algorithm for models with complex velocity structure
Xinding Fang, Siwei Li, Zhixiang Zhang, Tianrun Chen, Yingcai Zheng
International Meeting for Applied Geoscience and Energy (IMAGE)
..., otherwise, we should weight 𝐶$$ more in order to eliminate the influence of velocity model inaccuracy. Figure 3: Stochastic double-difference...
2024
Application of Interferometric MASW to a 3D-3C Seismic Survey
Shaun Strong, Steve Hearn
Petroleum Exploration Society of Australia (PESA)
... influence the dispersion response. In this investigation we have used 2D modelling to examine the impact of lateral variations. We also test a method based...
2016
Resolution limits of fluid overpressures from mineralogy, porosity, and sonic velocity variations in North Sea mudrocks
Christian Hermanrud, and Oddgeir Undertun
AAPG Bulletin
..., and Oddgeir Undertun 2019 2665 2695 103 11 Pore pressure identification in mudrocks largely relies on indirect methods, including analyses of sonic velocity...
2019
Abstract: Interpretation of Seismic Data in Terms of Gas Reservoir Identification (Carpathian Foredeep, SE Poland), by Artur Tatarata; #90070 (2007)
Search and Discovery.com
2007
Abstract: Seismic Anisotropy Modeling from Well Log in Talang Akar Formation, South Sumatra, Indonesia, by Thariq Guntoro, Intan Andriani Putri, and Dwa Desa Warnana, #90188 (2014)
Search and Discovery.com
2014
Despiking Ultrasonic Doppler Velocity-Profiling Data
Jonathan D. Wright, Jaco H. Baas
Journal of Sedimentary Research (SEPM)
... end of the measurement section and extended its influence to the UDVP transducer. Figure 6C shows that the absolute standard deviations of mean velocity...
2013
Facies and Stratigraphic Controls on Velocity Anomalies in The North Madura Platform, Offshore East Java Basin
Fithra Harris Darmawan, Shakila Bt Mustaffa, Aditya Kusuma Wijaya, M Nauvall Juliansyah, Geovani Kaeng
Indonesian Petroleum Association
...Facies and Stratigraphic Controls on Velocity Anomalies in The North Madura Platform, Offshore East Java Basin Fithra Harris Darmawan, Shakila Bt...
2019
Kinematics of Sand Avalanches Using Particle-Image Velocimetry
Michael Tischer , Marcus I. Bursik , E. Bruce Pitman
Journal of Sedimentary Research (SEPM)
...) Velocity measurements for the right border of the flow measured at the maximum width of the avalanche head as a function of the distance in x direction...
2001
Carbonate Sand Waves, Isla Mujeres, Yucatan
J. C. Harms, P. W. Choquette, M. J. Brady
New Orleans Geological Society
... with an average velocity of about 50 cm/sec (1 knot) and apparently is rarely altered in direction. 1 First printed 1974 End_Page 60...
1978
Seismic Reflection Models of Rift-Related Structures: ABSTRACT
Martha Oliver Withjack, D. J. Drickman Pollock
AAPG Bulletin
... systematically show how each of these variables, as well as rock velocity, influence the seismic expression of rift-related structures. These seismic models...
1983
ABSTRACT: Converted Shear-Wave Anisotropy Attributes for Fractured-Reservoir Management; #90013 (2003)
JAMES E. GAISER, RICHARD R. VAN DOK
Search and Discovery.com
... with the engineering data. P-wave AVO/AVA and azimuthal velocity anisotropy analyses can be important for inferring fracture properties (e.g., Hall et al., 2000...
2003
Tidal Action as a Cause of Clay Accumulation
L. M. J. U. van Straaten, Ph. H. Kuenen
Journal of Sedimentary Research (SEPM)
... the inner shores and towards the tidal watersheds (fig. 1) which connect the barrier islands with the mainland. In the same direction the clay...
1958
Determination of Hydraulic Fracture Orientation in the Kuparuk River Field, Alaska: Fractured Reservoirs: Origin, Description, Evaluation
J. S. Blundell, R. J. Hallam
AAPG Special Volumes
... direction. The results of all these analyses indicated a variation in fracture direction across the Kuparuk River field. In the northeast sector...
1991
Abstract: Crosswell Imaging with LCB Beamlet, by Yueming Ye; Wu Ru-shan; Zhuang Xijin; #90163 (2013)
Search and Discovery.com
2013
Fluid Flow
Gerard Middleton, John B. Southard
Special Publications of SEPM
... of velocity in the y direction but as the component of velocity tangent to the streamline at a given point .) The derivative on the right side of Equation...
1984
Physical Processes in the Ocean
R. H. Fleming, Roger Revelle
Special Publications of SEPM
... transport of water. Currents exist where there is a certain uniformity of velocity and a net transport in a definite direction. Currents arise from...
1955