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The AAPG/Datapages Combined Publications Database
Showing 34,497 Results. Searched 200,685 documents.
Chapter 10: Earthquake, Tomographic, Seismic Reflection, and Gravity Evidence for a Shallowly Dipping Subduction Zone beneath the Caribbean Margin of Northwestern Colombia
Rocio Bernal-Olaya, Paul Mann, Carlos A. Vargas
AAPG Special Volumes
... the effect of topography by using a background density of 2.67 g/cm3 for all models. Modeling began by defining three horizontal layers as sedimentary rocks...
2015
Applications of Hydraulics to the Study of Marine Turbidity Currents
Henry W. Menard, John C. Ludwick
Special Publications of SEPM
... of boundary waves, (3) the effect of a vertical density gradient in turbidity current, and (4) the development of interflows in a stratified ocean...
1951
Modeling Tidal Bedding In Distributary-Mouth Bars
Nicoletta Leonardi, Tao Sun, Sergio Fagherazzi
Journal of Sedimentary Research (SEPM)
.... Figures 7A and B illustrate the effect of a possible increase in mud settling velocity and sediment concentration for a generic instant of the tidal cycle...
2014
Geopressure Compartmentalization in Keathley Canyon Deep Water, Gulf of Mexico
Selim S. Shaker
GCAGS Transactions
... (S1, S2, S4 & S5). On the other hand, on both sides of the incompetent seal (S3), the pore-pressure gradient remains in the same hydrostatic envelope...
2001
Complex mountainous stepwise tomographic inversion modeling method
Haili Wang, Yongguo Wu, Weibo Li, Zhihui Yan, Li He, Baohua Yu
International Meeting for Applied Geoscience and Energy (IMAGE)
... Basin, where surface is severely fluctuating with vertical and horizontal ravines, and underground fault structures is broken. The LVL velocity...
2024
Lateral Changes in Seismic Velocities and Their Effect on Depth Prediction
J. Pinchin, M. Bayly
Petroleum Exploration Society of Australia (PESA)
... that the reason for this is the effect of short wavelength lateral velocity changes upon the stacking velocity determinations. The conclusion is that although...
1989
Refracturing: Empirical Results in the Bakken Formation
William Ruhle
Unconventional Resources Technology Conference (URTEC)
... of solid particles in a horizontal pipe is not a novel concept. It is affected by parameters such as, fluid velocity, rheology, particle size, relative...
2016
ABSTRACT: Elastic Wave Propagation in a Pre-Stressed Formation with a Borehole, by Xiuming Wang, Kevin Dodd, and Li-Yun Fu; #90913(2000).
Search and Discovery.com
2000
The Innisfail Oil Field - A Case History
R. J. White, W. W. Charles
CSPG Special Publications
... encountered in many of the holes. The reflecting times were corrected to a horizontal datum plane using a correctional velocity of 7,500 feet per second...
1958
Mainstream Mantle Convection: A Geologic Analysis of Plate Motion
T. H. Nelson , P. G. Temple
AAPG Bulletin
.... We have also assumed that both the maximum mainstream velocity and the mainstream-velocity gradient are constant for any given mainstream latitude...
1972
Behavior of Fluids
Gerard Middleton, John B. Southard
Special Publications of SEPM
..., the average velocity gradient. So T du/dy (1.2) const = This constant ratio p is called the viscosity of the fluid, and is the property...
1984
Hydrodynamics of Bivalve Shell Entrainment and Transport
Amalia M. Olivera , William L. Wood
Journal of Sedimentary Research (SEPM)
... Flow visualization, pressure measurements on the shell surface, and measurements of entrainment velocity were used to study the effect of shape...
1997
Deltaic Depositional Processes in a Glacier-Fed Lake: A Model for the Fluvial/Lacustrine Interface
Jim Bogen
Special Publications of SEPM
... a velocity vector V = V(X,Y) to each point in the system, with components V and V, and that the horizontal velocity of the particle h equals vh. Thus...
1987
Pressure Detection: Part 3. Wellsite Methods
Parke A. Dickey
AAPG Special Volumes
...). For example, if a shale is totally sealed and there is no dilation to increase the pore volume, and if the geothermal gradient is 25°C per 1000 m...
1992
What is Horizontal Resolution?
L. R. Denham, R. E. Sheriff
Indonesian Petroleum Association
... a point means that the effect of horizontal changes in the reflector are spread across a zone of dimensions of the order of the first Fresnel zone...
1981
Flow Interference Between Frac Clusters (Part 2): Field Example From the Midland Basin (Wolfcamp Formation, Spraberry Trend Field) With Implications for Hydraulic Fracture Design
Ruud Weijermars, Arnaud van Harmelen, Lihua Zuo
Unconventional Resources Technology Conference (URTEC)
... respectively. Fluid removal occurs fastest near the velocity peaks near the frac tips (Fig. 12b), where the pressure gradient is steepest (Fig. 12a...
2017
Some Applications and Problems of the Seismic Refraction Technique in Civil Engineering Projects in Malaysia
B. K. Lim, S. J. Jones
Geological Society of Malaysia (GSM)
... in the overburden. Examples of horizontal and vertical variations of the velocity of the overburden have been well documented by Koefoed (1954) and Evison...
1982
The Transformation of Poleng Field
Mary Welker-Haddock, Robert Park, Imron Asjhari, John Bradfield, Binh Nguyen
Indonesian Petroleum Association
... the field (Figure 7). This velocity gradient originally masked the reserves on the western flank. Improved time to depth conversion enlarged the structural...
2002
Abstract: Forward Modeling of Log Response in Geopressured Formations Reveals Valuable Insights to the Various Pore Pressure Prediction Techniques, by J. C. Rasmus; #90923 (1999)
Search and Discovery.com
1999
Correcting and Exploiting Shale Anisotropy Effect on LWD 2 MHz Resistivity Devices in Horizontal Drilling/Logging
C. Jackson, T. Hagiwara
CSPG Special Publications
...Correcting and Exploiting Shale Anisotropy Effect on LWD 2 MHz Resistivity Devices in Horizontal Drilling/Logging C. Jackson, T. Hagiwara 1995 81 81...
1995
Serang Field – Discovery Within a Seismic "Fault Shadow"
Tom Clark, Mike Turk, Joewono Hadiwijoto, Yoseph Partono
Indonesian Petroleum Association
... effect results in an artificial time dip closure. Figure 4. Fault Shadow Velocity Model - Lateral Carbonate Distribution across fault Depth Conversion...
2000
Mechanisms of Natural Fracturing in a Sedimentary Basin
Kinji Magara
AAPG Bulletin
... pressure gradient, pf = fracture pressure, D = depth at which fracture occurs, and ^sgrh = horizontal stress (= ^sgrx = ^sgry in this example...
1981
Stage-Level Data Integration to Evaluate the Fracturing Behavior of Horizontal Wells at the Hydraulic Fracturing Test Site (HFTS): An Insight into the Production Performance
Shadi Salahshoor, Debotyam Maity, Jordan Ciezobka
Unconventional Resources Technology Conference (URTEC)
...Stage-Level Data Integration to Evaluate the Fracturing Behavior of Horizontal Wells at the Hydraulic Fracturing Test Site (HFTS): An Insight...
2020
Fault Shadow Correction Methodology
P. Julien, J. L. Broyer, O. Bernet-Rollande
Indonesian Petroleum Association
... parameters control such a fault shadow effect: the velocity contrasts across the fault: if there is no velocity contrast across the fault...
2000
Abstract: Seismic Implications of Moveable Fluids; #90254 (2016)
Robert W. Wiley, Peter Wilson, Scott Peters
Search and Discovery.com
.... This attenuation is due to a pressure gradient on the subwavelength scale as the fluids are pushed through the pores (Muller and Gurevich, 2005, Muller et al...
2016