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The AAPG/Datapages Combined Publications Database
Showing 34,502 Results. Searched 200,616 documents.
Real-Time Pore Pressure Monitoring Optimizes Drilling 4 Deep Water Wells in Kutei and Tarakan Basin - Offshore East Kalimantan
Graziano Capone, Giovanni Bucari, Somesh Bahuguna, Ngurah Beni Setiawan
Indonesian Petroleum Association
..., or shear failure, and the loss gradient (minimum horizontal stress gradient). Coupling the effects of the deepwater environment with exploration...
2011
Effect of Moisture Upon Velocity of Elastic Waves in Amherst Sandstone
W. T. Born, J. E. Owen
AAPG Bulletin
...Effect of Moisture Upon Velocity of Elastic Waves in Amherst Sandstone W. T. Born, J. E. Owen 1935 9 18 19 1. (January) Laboratory measurements...
1935
Fluid Mechanics
Jeffrey S. Hanor
Special Publications of SEPM
... is fluid density, g is the gravitational constant, and z is elevation. The symbol V is the gradient operator, which we will be defining shortly...
1988
Velocity-depth trends in Mesozoic and Cenozoic sediments from the Norwegian Shelf: Discussion
Peter Japsen
AAPG Bulletin
... for shale from all three areas thus appear to be uniform over kilometer-thick sections: they show a steady velocity-depth gradient that is very close...
2006
Analytical Approach for Multivariate Exploration Planning via Secondary Migration Modelling
Amin Shokrollahi, Sara Borazjani, Syeda Sara Mobasher, Ulrike Schacht, Khalid Amrouch, Pavel Bedrikovetsky
Australian Petroleum Production & Exploration Association (APPEA) Journal
...) developed a new formulation to investigate the effect of vertical and horizontal permeability variation of porous media on the propagation of planar...
2023
Mixing at Turbidity Current Heads, and Its Geological Implications
J. R. L. Allen
Journal of Sedimentary Research (SEPM)
... imposed on the medium. It follows that if a separation bubble was driven along by the head as it advanced, the horizontal velocity relative to a fixed...
1971
ABSTRACT: Porosity-Velocity Distribution in Stratigraphic Sequences: The Marion-Yin Model; #90013 (2003)
JUAN FLOREZ, GARY MAVKO
Search and Discovery.com
... be associated to the effect of sorting on porosity and consequently on permeability (Figs. 4 and 5) and velocity (Avseth et al, 2000). However, in the case...
2003
2.0 Abnormal Pore Fluid Pressures: Definition, Terminology, Observations
P. E. Gretener
AAPG Special Volumes
... gradient is observed in this area as the Alpine front is approached. The effect is attributed to horizontal compression. Similar observation have been...
1981
Abstract: Thermal and Compositional Structure of the Lithospheric Mantle in the Barents Sea, by Laura Marello; #90177 (2013)
Search and Discovery.com
2013
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
... to be a challenging area for seismic imaging due to the presence of velocity heterogeneity in a more than 1.5 km thick carbonate overburden. An accurate...
2023
Elastic Anisotropy of Source Rocks: Implications for Hydrocarbon Generation and Primary Migration
Lev Vernik , Charles Landis
AAPG Bulletin
... increase in the gradient, dVp(0°)/dPc, of the bedding-normal P wave velocity with pressure taken at a low Pc of 5 MPa roughly coincides with the peak...
1996
Geological engineering characteristics and comprehensive fracability evaluation method of the tight sandstone in the Jurassic Qianfoya Formation in Sichuan Basin in China
Xin Fan, Haibo Wang, Fengxia Li, Zhiwen Huang, Tong Zhou, Jia Cui, Hao Zeng, Junqing Dai
Unconventional Resources Technology Conference (URTEC)
... 1.86 1.82 1.82 1.50 1.00 0.50 0.00 2-14/38 2-38/38 79-12 3-26/45 Core Number maximum horizontal stress gradient, MPa/100m minimum horizontal...
2025
The Maturity of Organic-Rich Shales Using Micro-Impedance Analysis, #40675 (2010)
Kenechukwu Mba, Manika Prasad, Michael L. Batzle,
Search and Discovery.com
... of Mines Presented by Rick Sarg CONCLUSIONS • High silica + carbonate content results in high impedance shales. No simple relationship between velocity...
2010
Transportation of Detritus by Moving Water
Filip Hjulstrom
Special Publications of SEPM
... in that the effect of any disturbance, such as waves or damming, can not go upstream. If the velocity increases markedly, other phenomena...
1955
Abstract: Optimum Aperture Length for Improving Dispersion Curve Analysis in CMP Cross-Correlation of Surface Waves; #90187 (2014)
Roohollah Askari, Robert J. Ferguson, and Helen Isaac
Search and Discovery.com
... the source effect (initial phase value) is removed, therefore, the data can be sorted CMP gathers. Consequently, we calculate the phase velocity...
2014
Sonic velocity, submarine canyons, and burial diagenesis in Oligocene-Holocene cool-water carbonates, Gippsland Basin, southeast Australia
Malcolm W. Wallace, Guy R. Holdgate, Jim Daniels, Stephen J. Gallagher, Andrew Smith
AAPG Bulletin
... the effect of carbonate content at shallow depth. Virtually all wells with shallow sonic velocity data show a marked change in gradient at around 300-500 m...
2002
Acquisition and Ananlysis of Wide-Angle Reflection and Refraction Seismic Data
Paul L. Stoffa
Circum Pacific Council Publications
...), we sum the traveltime contributions from each layer. T-p Traveltimes v + q Considering a stack of horizontal constant velocity layers of thickness...
1989
Seismic Refraction Studies in Gulf of California
Richard P. Phillips
AAPG Special Volumes
... is [EQUATION] where 1.74 km/sec is the velocity at the sediment-water interface, 0.91 sec-1 is the velocity gradient, and Z is the depth in kilometers...
1964
Abstract: Migration of Velocity Spectra: An Example from the Philippines
Craig J. Beasley, Rolf Klotz
Geological Society of Malaysia (GSM)
... data is located at an unmigrated position and thus should be repositioned prior to use as a migration velocity. The effect of this phenomenon...
1991
Temperature Gradient in Pechelbronn, Alsace: DISCUSSION
Alfred C. Lane
AAPG Bulletin
...Temperature Gradient in Pechelbronn, Alsace: DISCUSSION Alfred C. Lane 1929 1569 1569 13 12. (December) The valuable article by Haas and Hoffmann...
1929
An Interpreter's Guide to Improvements in Depth Imaging Through Model-Based Velocity Estimation and Refinement
Andy Furniss
Indonesian Petroleum Association
... whereas seismic velocities typically measure the horizontal component. In any situation where there are vertical or lateral velocity variations...
2000
Full-Waveform Inversion Application on 2D Slanted Streamer Data - A Case Study
Andreas Waluyo
Indonesian Petroleum Association
...-propagated wavefield to produce the gradient volume. Step 3. Correct the amplitude of the gradient proportional to the velocity change. Seismic waveform...
2014
Hydraulic Sorting of Heavy-Mineral Grains by Swash on a Medium-Sand Beach
Michael G. Hughes, Jock B. Keene, Rebecca G. Joseph
Journal of Sedimentary Research (SEPM)
... by differential settling on the basis that the light and heavy mineral grains had similar settling velocities, the density effect on settling velocity being...
2000
A Regional Velocity Cube for Depth Conversion on the Northwest Shelf
Maighréad Ní Dheasúna, Mark Ballesteros, James Leven
Petroleum Exploration Society of Australia (PESA)
.... Average velocity (L 7) versus RMS velocity (L2) for a stack of horizontal/ayers, each with a thickness of and a velocity of z, Figure 2 outlines t he...
2012
Microfracture Development in Compacting Sediments: Relation to Hydrocarbon-Maturation Kinetics
V. V. Palciauskas, P. A. Domenico
AAPG Bulletin
... and Domenico, 1976). The effect of rapid sedimentation End_Page 934------------------------------ and convective alterations of the geothermal gradient...
1980