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The AAPG/Datapages Combined Publications Database
Showing 432 Results. Searched 200,691 documents.
Abstract: Estimating Reserves in Tight Gas Sands: Geological Complexities and Controversies, Creties Jenkins, #90098 (2009)
Search and Discovery.com
2009
A Compensated Spectral Natural Gamma Ray* Logging System
C. Kessler, R. Washa, G. S. Yarbro
Indonesian Petroleum Association
... measurements is that the true formation value has a 68% probability of being within plus or minus one standard deviation and a 95% probability...
1984
Rhomboid Ripple Marks and their Relationship To Beach Slope
David F. Demarest
Journal of Sedimentary Research (SEPM)
... course was a little under 6 seconds (plus or minus one second), or an average velocity of nearly 4 feet per second. 2. When the depth of water falls...
1947
Prospecting for Gas Hydrate Accumulations Using 2D and 3D Seismic Data, Milne Point, North Slope Alaska, by Tanya L. Inks, Timothy S. Collett, David J. Taylor, Warren F. Agena, and Myung W. Lee; #90035 (2004)
Search and Discovery.com
2004
Bromine Distribution in Some Halite Rocks of the Paradox Member, Hermosa Formation, in Utah
Omer B. Raup
Rocky Mountain Association of Geologists
... tent. T h e precision o f the method i s plus or minus 16 percent. percent. As of the X -ray method, 86 A s a check on the accuracy o f t h e X-ray...
1972
Marker Event Identification Technique and Correlation of Cenozoic Biozones on the Labrador Shelf and Grand Banks
Marc A. D'Iorio, Frederik P. Agterberg
CSPG Bulletin
.... The so-called "local error bars" are used in this study. An error of plus or minus one standard deviation (of residuals in spline fitting) on the age...
1989
New Analysis of EUR Probability Plots Yields Better Uncertainty Assessment and Better Type Wells
Randy Freeborn
Unconventional Resources Technology Conference (URTEC)
... of the population distributions will vary from the original by less than plus or minus twenty one percent as determined from the radius calculation...
2018
Geothermal Parameters in the Powder River Basin, Wyoming
Richard W. Davis
Wyoming Geological Association
... variation in thermal conductivities. Their common correction factor value of 1.0 plus or minus 0.1 is indicative of their accuracy Figure 5. Correction...
2008
Velocity continuation with Fourier neural operators for accelerated uncertainty quantification
Ali Siahkoohi, Mathias Louboutin, Felix J. Herrmann
International Meeting for Applied Geoscience and Energy (IMAGE)
... different instances of each horizons and shaded areas indicate the mean plus and minus the pointwise standard deviation. These shaded areas indicate...
2022
Results of Dating Cretaceous, Paleogene Sediments, Europe
G. S. Odin
AAPG Special Volumes
... and white. Both boundaries can be estimated at plus or minus half a megayear. This possibility is not frequent with glauconites. End_Page 134...
1978
Statistical Appraisal of Seismic Prospects in Louisiana-Texas Outer Continental Shelf
John C. Davis , John W. Harbaugh
AAPG Bulletin
....) of closure. Shaded areas correspond to values of plus and minus 1 and 2 standard deviations about the regression, as read from Figure 13. Fig. 15. Graph...
1983
Acoustic Log Measurements in the Lower Eagle Ford Formation in Brazos and Robertson Counties, Texas and Their Implications on Completion Design
Richard Reischman, Scott Brooks, Trevor Willms, Tony L. Albrecht, John J. Walsh, Edgar Arteaga
Unconventional Resources Technology Conference (URTEC)
... interval is indicated by the red box in the middle track. The light lines bordering the stress curve indicate a plus or minus 300 psi envelope around a 500...
2015
Facies-Calibrated Petrophysical and Geocellular Property Modeling Using Data Analytics and Multi-Point Statistics in the Delaware Basin, USA
Margaret Lessenger, Tad Gladczenko, James Hardt, Matt Houston
Unconventional Resources Technology Conference (URTEC)
... and measured DGD as a function of predicted DGD. The lines show the average residual plus and minus one standard deviation. Log Curve RHOB Log10(RT...
2019
A Non-Destructive Core Analysis Technique Using X-Rays
Seymour R. Baker, Gerald M. Friedman
Journal of Sedimentary Research (SEPM)
... with the distortion equation. Limitations of Scaling Analysis An error in accuracy of plus or minus 2 cm or less is to be expected in the scaling...
1969
Holocene Sedimentation Patterns on the Continental Shelf Near Monterey Bay, California, As Determined by Multivariate Analysis of Heavy Mineral Point Count Data
Melvyn L. Rappeport
Pacific Section SEPM
... compositions after zero-mean transformation complete association. The plus or minus reflect the vector association of the factors. The results...
1976
The use of dynamic modeling in assessing tritium phytoremediation
Karin T. Rebel, S. J. Riha, J. C. Seaman, C. D. Barton
Environmental Geosciences (DEG)
... in the surface soil layers than in deeper layers, which was generally true of the measured values. Figure 1 presents the mean, plus and minus one standard...
2005
Sensitivity Analysis of Petroleum Formation Modeling in the Northern Gulf Basin
Eric J. Nelson, Michael D. Lewan, Paul Weimer
GCAGS Transactions
... by McBride (1997) by plus or minus twenty percent using BasinMod 1-D. The resulting sensitivity plots were made at the critical moment (a transformation...
2000
A Temporal and Spatial Study of Mudflat Erosion and Deposition
Franz E. Anderson, Luther Black, Les E. Watling, William Mook, Lawrence M. Mayer
Journal of Sedimentary Research (SEPM)
... with the interpretation of the diagrams, the mean elevation change of each traverse is shown next to each map as a plus or minus histogram. October 16-November 11...
1981
Geological Road Log Along U. S. Highways 90 and 80 Between Del Rio and El Paso, Texas
Highway Logging, John A. Burleson
West Texas Geological Society
.... Devils River is spring-fed and is reported to be the shortest river in Texas, being some 25 plus or minus miles from its point of origin to its...
1958
Reevaluation of thermal maturity and stages of petroleum formation of the Mississippian Barnett Shale, Fort Worth Basin, Texas
M. D. Lewan, and M. J. Pawlewicz
AAPG Bulletin
... lubricant beads, wood debris, and other low-density contaminants. Solid line denotes unity agreement, and dashed lines represent plus and minus 10% deviations...
2017
Well Performance Optimization With Electric Submersible Pump Using Production Software
August J.P., Ridwan Kiay Demak
Indonesian Petroleum Association
... of angles so that the effect of angle on holdup and pressure gradient were measured at angles from horizontal of 0, plus and minus 5,10, 15, 20, 25, 35...
2005
An Appraisal of High Pressure Air Injection (HPAI) or In-Situ Combustion Results from Deep, High-Temperature, High-Gravity Oil Reservoirs
A. Erickson, J. R. Legerski Sr., F. V. Steece
Wyoming Geological Association
... within plus or minus 10 to 15%. With gas utilization possible from large, higher-gravity reservoirs, equivalent barrels of gas could equal or exceed...
1993
Geochemistry of Los Angeles Basin Oil and Gas Systems: Chapter 6
Alan W. A. Jeffrey, Hossein M. Alimi, Peter D. Jenden
AAPG Special Volumes
... components were measured with a relative precision of plus or minus 3% (1 ). The average analytical total of 97.3% reflects the fact that water vapor...
1991
Secondary Porosity Revisited: The Chemistry of Feldspar Dissolution by Carboxylic Acids and Anions (1)
RONALD K. STOESSELL and EDWARD D. PITTMAN
AAPG Bulletin
... furnace, plus or minus 1 degree C) and 300 bars (argon gas pressure in headspace of vessel, plus or minus 3 bars) with an initial fluid:rock mass ratio...
1990