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The AAPG/Datapages Combined Publications Database
Showing 3,665 Results. Searched 200,693 documents.
The economic environment and the growth in reserves from known gas fields in the Gulf of Mexico
Kevin F. Forbes, Ernest M. Zampelli
CSPG Bulletin
..., the application of the Arrington method presumes that growth is independent of the economic environment. In our view, this creates a bias. For example, if, as we...
2012
Electronic Data Processing In Sedimentary Size Analyses
Joe S. Creager, Dean A. McManus, Eugene E. Collias
Journal of Sedimentary Research (SEPM)
...------------------------ The percentile estimates from the two methods were compared in the following manner to determine whether the program added a constant bias: for each...
1962
Ankerite in the Green River Formation's Mahogany Zone
John Ward Smith, William A. Robb
Journal of Sedimentary Research (SEPM)
... is not part of the carbonate minerals, introducing a minor bias. For example, about 2-3 percent of the total Mg is not soluble in dilute acid. Because...
1966
Automated Well Top Picking and Reservoir Property Analysis of the Belly River Formation of the Western Canada Sedimentary Basin
Baosen Zhang, Tianrui Ye, Yitian Xiao, Dongmei Li, Guoping Wang, Cong Su, Tongyun Yao
Unconventional Resources Technology Conference (URTEC)
... and timeconsuming. In addition, the work is difficult to normalize and standardize due to human bias. For unconventional resource plays with tens of thousands...
2022
Oxygen and Hydrogen Isotope Time-Series Data in the Hydrologic Cycle of the U.S. Gulf Coast
W. Joe Lambert and Paul Aharon
GCAGS Transactions
... of DeSoto Caverns, there is a bias toward winter precipitation having a stronger influence on the vadose water’s δ18O (-5.1 ‰) composition. Although...
2008
The Description and Measurement of Sedimentary Particles and the Concept of Form
W. Brian Whalley
Journal of Sedimentary Research (SEPM)
...--Wentworth (1936), Shepard and Young's (1961) so called 'pivotability'. All these chart comparison methods are liable to considerable operator bias (Rosenfeld...
1972
Stratigraphic Analysis of the Navajo Sandstone: REPLY
Glenn S. Visher, William E. Freeman
Journal of Sedimentary Research (SEPM)
..." suggests a bias. Studies by Visher (1969; 1973; 1974), Tillman (1971), Middleton (1973), Moiola and others (1974), and Sagoe and Visher (1977) all show...
1977
Introduction to Contouring Geological Data with a Computer: Part 8. Integrated Computer Methods
J. L. Gevirtz
AAPG Special Volumes
... on the regional geological framework and the geologist's bias arising from prior experience are an inherent part of the hand-contoured map. Hand...
1992
The Shape-Assist Technique: Incorporating Stream Channel Interpretations into Computer-Generated Surface Models: Clark County, Kansas: Chapter 3
John F. Fierstien, Arthur V. Brewster
AAPG Special Volumes
... of the area without any implied geological bias, for this helps guide selection of the channel position. Once this map has been prepared, the channel outline...
1992
Determining the Channel Sinuosity of Ancient Fluvial Systems from Paleocurrent Data
J.P. Le Roux
Journal of Sedimentary Research (SEPM)
... the preservation potential of different sedimentary structures, which could bias the operational data to some extent. Allen (1967) concluded that fluvial...
1992
High-Precision Measurements of Wetland Sediment Elevation: I. Recent Improvements to the Sedimentation-Erosion Table: RESEARCH METHODS PAPERS
Donald R. Cahoon,, James C. Lynch,, Philippe Hensel, Roelof Boumans, Brian C. Perez, Bradley Segura, John W. Day, Jr.
Journal of Sedimentary Research (SEPM)
... and averaged over the nine pins of a given trial. These average differences give an estimate of the bias in leveling height for a given trial...
2002
Geologic Aspects of Origin of Petroleum: DISCUSSION
Luis M. Banks
AAPG Bulletin
... environment have been heretofore favored greatly by petroleum geologists as the source beds of oil. This bias has led many geologists to seek and find...
1966
Mechanisms of Sandstone Deposition in a Late Proterozoic Submarine Canyon, Adelaide Geosyncline, South Australia
C. C. Von Der Borch, A. E. Grady
AAPG Bulletin
.... Geometrically, they are relatively symmetrical with the canyon profile in the Patsy Springs canyon, but show marked bias toward north walls of several major east...
1984
Dating petroleum emplacement by illite 40Ar/39Ar laser stepwise heating: Discussion
Norbert Clauer, Fred Jourdan, Horst Zwingmann
AAPG Bulletin
...). This displacement creates 39Ar redistribution within mineral crystals but, more importantly, induces 39Ar losses from rims of the crystals that bias...
2011
Calibrating discrete fracture-network models with a carbonate three-dimensional outcrop fracture network: Implications for naturally fractured reservoir modeling
K. Bisdom, B. D. M. Gauthier, G. Bertotti, and N. J. Hardebol
AAPG Bulletin
... because of (1) sampling bias in the well caused by the well orientation with respect to average fracture orientation and (2) the uncertain extrapolation...
2014
Abstract: A Ray+Waveform Inversion for the Potency Tensor; #90187 (2014)
Scott Leaney and Chris Chapman
Search and Discovery.com
...iagonal covariance for . 1000 models are sampled. The inversion clearly shows the bias to non-DC components due to the anisotropy of the source med...
2014
Biogenic Gas Systems in the Qaidam Basin, NW China, #50377 (2011)
Haiping Huang, Shuichang Zhang, Xiaobao Zhang, Aiguo Su, Olufemi Jokanola, Yanhua Shuai, Steve Larter,
Search and Discovery.com
... ANN 21,31 22 14 :: :: 16 Bias 31 23 15 24 17 Grain density 25 Bias Useful Data Clay fraction Porosity Outputs AAPG ICE 2010...
2011
Using Microseismicity to Understand Subsurface Fracture Systems and Increase the Effectiveness of Completions: Eagle Ford Shale, Texas; #41186 (2013)
John P. Detring and Sherilyn Williams-Stroud
Search and Discovery.com
... the hydraulic fracture design. Microseismic data collected using a surface array allowed the full geometry of the result to be viewed with no directional bias...
2013
In-Situ, Micron-Scale Analyses of Carbonate δ13C by SIMS: A Method for Identifying Carbonate Cements that Form in Response to CO2 Injection at the Illinois Basin Decatur Project Site; #51235 (2016)
Maciej Sliwinski, Kouki Kitajima, Reinhard Kozdon, Michael Spicuzza, Adam C. Denny, John W. Valley
Search and Discovery.com
... mass spectrometry bias on isotope ratios in dolomite-ankerite, Part I: δ18O matrix effects: Geostandards and Geoanalytical Research, v. 40/2, p...
2016
Forecasting the Domestic Utilization of Natural Gas in Nigeria (2015-2020); #70234 (2017)
Rita U. Onolemhemhen, Jumai J. Adaji, Sunday O. Isehunwa, Adeola Adenikinju
Search and Discovery.com
... absolute percent error 0.215890 Theil inequality co-efficient 0.001152 Bias proportion 0.00000 Variable proportion 0.064 Co-variance proportion...
2017
The Discovery of Daqing Oilfield in China; #70350 (2018)
Mu Liu
Search and Discovery.com
... influence and academic bias, there is no widely accepted consensus in Chinese academia on this question. However, three Chinese geologists, Li Siguang...
2018
A Corporate Strategy for Reducing Dry Holes and Improving Resource and Reserve Estimates; #70390 (2019)
Robert C. Shoup
Search and Discovery.com
... in the company, and they will be free of bias. It is worth noting that a pre-drill review costs the same as a post-well review, minus the cost of the dry...
2019
Oil vs. Gas: What are the Limits to Prospect-Level Hydrocarbon Phase Prediction?; #42513 (2020)
Andrew Murray, Zhiyong He
Search and Discovery.com
...) • Predicting saturation pressure (bubble point, dew point) • Migration: Fill, spill and leak • The inherent bias in prediction of GLR via geochemical...
2020
Quantifying the Influence of Three Dimensionality on Hydraulic Fracturing in Coal Seam Gas Wells
Christopher R. Leonardi, Thomas Flottmann, Vibhas J. Pandey, Raymond J. Johnson Jr.
Unconventional Resources Technology Conference (URTEC)
... is confined to SH-Sv plane (i.e. vertical) and have an upwards bias, caused by the lower stresses at shallower depths. It can be seen in Fig. 4b...
2019
A Communitys Guide to Best Practice Local Content Solutions
Shane Charles
Australian Petroleum Production & Exploration Association (APPEA) Journal
... to incorrect information and bias. The APPEA Journal * * 411 Proponents respond well to targets and key performance indicators...
2017