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The AAPG/Datapages Combined Publications Database
Showing 432 Results. Searched 200,685 documents.
Exploiting non-uniqueness: Improving inversion results by post-processing
James Brewster
International Meeting for Applied Geoscience and Energy (IMAGE)
... contrast values fall within the range of plus or minus 1 gm/cc. Reference to Wei and Sun (2021), suggests that this is at least within a factor of two...
2023
Modern Stratigraphic Logging Methods and Their Application to Subsurface Exploration
C.K. Fisher
Rocky Mountain Association of Geologists
... of primary porosity (Table 3). Table 2 Value of Plus and Minus Factors Size Coarse, %mm. 8 greater Medium, %mm. ? mm. h Fine, 1/8mm. M mm. Rounded...
1962
Winkleman Dome Oil Field
Robert W. Lane
Wyoming Geological Association
... as well as a structure map of the Tensleep. The Phosphoria thickness is 300 feet plus or minus 10 feet throughout the field area. Thus only the contour...
1957
Abstract: Numerical Modeling for Different Types of Fractures; #90187 (2014)
Xiaoqin Cui, Laurence R. Lines, and Edward S. Krebes
Search and Discovery.com
...d respectively. denotes normal ( ) and shear ( ) tractions of the motion. The signs of the plus and minus represent upper (left) and lower (right) mediu...
2014
Evaluating a 2-D Structural Restoration: Validating Section Balance, #41941 (2016).
Steven Lingrey, Oskar Vidal-Royo
Search and Discovery.com
... or ruler, line-length is plus or minus a few mm NORMAL STRATIGRAPHIC SEQUENCE 20.00 1.28 25.48 unit bedlength Sbl bedarea 1+ 1 20.0 1.026...
2016
Diving wave tomography: Velocity modelling using first arrival traveltime
Amatul Syafi Abdul Basit, Abdul Rahim Md Arshad, Arulini Permalu
Geological Society of Malaysia (GSM)
... statics associated with the base of weathering layer using plus-minus method (Hagedoorn, 1959) or generalized reciprocal method (Palmer, 1981...
2022
Change in Ostracod Standing Crop, Laguna Mandinga, Veracruz, Mexico: Reef Biota
Paul R. Krutak
AAPG Special Volumes
... (Dryden, 1931). Fig. 4. Change in dead and live ostracods per 100 cm3 of sediment at repeated sampling stations. Plus or minus signs indicate greatest...
1977
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)
..., 1961) and Hagedoom’s Plus-Minus Method (Hagedoom, 1959) allow fairly accurate mapping of these refractors. Successful application, however, requires...
1982
Application of RGB Color Quantification to Determine Rock Properties, Facies Distribution and Analog to Mahakam Producing Reservoirs, Case Study: Virtual Outcrop Model Palaran Area, Samarinda.
Bima Fatkhurroyan, Argo Wuryanto, Firdaus Tampilang, I-Made Putra, Dwi Charisah Andriyani, Ridwan Bima Arya
Indonesian Petroleum Association
... that the mean value plus/minus RGB composite value cut-off shows a better representation of the actual outcrop than a percentage lithology cut-off (Figure 10...
2017
Rapid Reservoir Modeling with Automated Tops Correlation
Christian W. Grant, William M. Bashore, Stefan Compton
Unconventional Resources Technology Conference (URTEC)
.../minus 5 feet, there are many places where the differences exceed plus/minus 20 feet. Figure 19. Map of the differences between the original picks...
2018
Taloga Field
Geology Department
Kansas Geological Society
..., glauconitic. Core analysis - permeability 58 md; porosity 14%. Thickness 54 feet. Thickness of Oil and Gas Column Lansing Gas 34 feet (plus or minus...
1959
Computer Mapping of Pinnacle Reefs, Evaporites, and Carbonates: Northern Trend, Michigan Basin: Chapter 5
David E. Hamilton, Skye K. Henize
AAPG Special Volumes
... display, an additional grid was constructed. This grid is commonly referred to as plus-minus grid since it contains positives on one side...
1992
Boundary Butte Anticline San Juan County, Utah
John Spragg
Four Corners Geological Society
... English plus or minus 1500 feet. Daily production is approximately 15 barrels of 42.7° gravity oil. Cumulative production to date is 32,000 barrels...
1952
A Brief Commentary on Magnetic Surveying in the Appalachian Area
C.A. Branham
Appalachian Geological Society
... corrections applied, position themselves vertically in plus or minus relationship to the Hbase" station. Datum on the base station may be the actual...
1949
Abstract: Dealing with Risk and Uncertainty in Exploration: How Can We Predict? How Can We Do Better?
Peter Rose
Earth Science Bulletin (WGA)
... of ten), plus or minus the actual volume of the accumulation. Forecasts of hydrocarbon volumes tend to be overly optimistic. The chief technical...
1985
Evaluation of Subsurface Pressures Obtained from Drill Stem Testing: Abstract
C. C. Olson
Tulsa Geological Society
... are read with a micrometer chart reader whose error is plus or minus one thousandth of an inch. The deflection readings are then converted to pressure from...
1953
ABSTRACT: Three-Dimensional Fluorescence Spectroscopy of the Sporinite and Resinite Macerals from Coals of Different Rank
Mark J. Brunsman and William A. Kneller
The Society for Organic Petrology (TSOP)
... bituminous) were fluoresced using a manual incident light monochromator to vary the excitation wavelength at intervals of plus or minus 10 nm. through...
1985
Discussion of Floating Continents
David White
AAPG Special Volumes
... is, and presumably has been since Archean time, very much more nearly perfect than is indicated by the plus and minus anomalies. End_of_Record - Last...
1928
1997
Dealing with Risk and Uncertainty in Exploration: How Well Do We Predict? How Can We Do Better?: ABSTRACT
Peter R. Rose
AAPG Bulletin
...), plus or minus the actual volume of the accumulation. 2. Forecasts of hydrocarbon volumes tend to be overly optimistic. The chief technical reason has...
1985
Abstract: Use of 3D Seismic to Land Horizontal Wellbores in Thin Beds: Potash Solution Mining Near Moab Utah, by R. J. Grundy and H. Harvey; #90092 (2009)
Search and Discovery.com
2009
Seismic Stratigraphy Interpretation Using Sequence Stratigraphy: Part 1: Seismic Stratigraphy Interpretation Procedure
P. R. Vail
AAPG Special Volumes
... geologic time lines within (plus-or-minus) one-half End_Page 1-------------------------- Figure 1. Diagram showing reflection termination patterns...
1987
Electric and Electromagnetic Prospecting for Oil
W. P. Jenny
AAPG Bulletin
... in phase, or 180° out of phase, with the primary field and the imaginary component plus or minus 90° out of phase with the primary field. This can...
1930
Density, Porosity, and Grain Density of Samples From Deep Sea Drilling Project Site 222 (LEG 23) in the Arabian Sea
Richard T. Bachman, Edwin L. Hamilton
Journal of Sedimentary Research (SEPM)
... are considered to be about ± 1% for saturated density, and about ± 0.5% for grain densities. Porosities are considered accurate to within plus or minus 1...
1976