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The AAPG/Datapages Combined Publications Database
Showing 670 Results. Searched 196,371 documents.
New Techniques for Stratigraphic Analysis and Correlation--Fourier Grain Shape Analysis Louisiana Offshore Pliocene
John V. Mrakovich, Robert Ehrlich, Bernhard Weinberg
Journal of Sedimentary Research (SEPM)
... so, throughout harmonic 20, demonstrating that the upper half of the 11,000 foot interval contains quartz grains that, on the average are smoother than...
1976
Compensating for the Compensation Effect Using Simulated and Experimental Kinetics from the Bakken and Red River Formations, Williston Basin, North Dakota, #41680 (2015).
Stephan H. Nordeng
Search and Discovery.com
... that coincides with the compensation effect. An analytical solution exists that relates the harmonic mean of experimental temperatures containing random errors...
2015
Conceptual Design for Mitigating Harmonic Distortion on ESP Installation: Case Study in Kaji Semoga Field, Medco E&P Indonesia
Sandy Suryakusuma, Suprapto Atmowiranto, Dadang Darmawan
Indonesian Petroleum Association
...Conceptual Design for Mitigating Harmonic Distortion on ESP Installation: Case Study in Kaji Semoga Field, Medco E&P Indonesia Sandy Suryakusuma...
2017
Fold Geometry Within Part of Michigan Basin, Michigan
E. H. Timothy Whitten , Walter A. Beckman, Jr.
AAPG Bulletin
..., 1945). The unit has an average thickness of approximately 150 ft and a mean subsea depth of about 2,850 ft. The top of the Dundee Limestone...
1969
Spherical Harmonic Deformation--A Discussion
D. G. de Paor
Journal of Petroleum Geology
...Spherical Harmonic Deformation--A Discussion D. G. de Paor 1980 455 456 2 4 There are so many contentious statements in this paper that only the most...
1980
Sources of Pleistocene and Holocene Sand for the Northeast Gulf of Mexico Shelf and the Mississippi Fan
Jim Mazzullo, Charles Bates
GCAGS Transactions
... characteristic of fine sand fraction in representative Mississippi Fan samples. Figure 11. Vertical variation in mean second-harmonic amplitude value in sands...
1985
Recognition of Sandstone Depositional Environment: A Grain Shape Approach, with an Example from North Padre Island
Jim Mazzullo , Donald Sims
GCAGS Transactions
... environments, however, it apparently plays a greater role; Pettijohn and Lundahl (1943), for example, noted a definite "decrease in average roundness...
1983
Layered Modulus Effect on Fracture Modeling and Height Containment
Kaimin Yue, Jon E. Olson, Richard A. Schultz
Unconventional Resources Technology Conference (URTEC)
... depending on fracture tip location, namely the modified height-weighted mean and the modified height-weighted harmonic average. By combining linear...
2018
Determination of Relative Provenance Contributions in Samples of Quartz Sand Using Q-mode Factor Analysis of Fourier Grain Shape Data
Carolyn Brauer Hudson, Robert Ehrlich
Journal of Sedimentary Research (SEPM)
... are nineteen harmonic amplitudes for each grain. For each sample of grains there are nineteen different shape frequency histograms. These histograms...
1980
Roughness of Limestone and Quartzite Pebbles by the Modified Fourier Method
Eliza Czarnecka, J. E. Gillott
Journal of Sedimentary Research (SEPM)
... "normalized." At each harmonic the average amplitude for each sample may be divided by the grand mean of all samples. Mean values are thus reduced...
1980
Abstract: Sand Body Geometry and Permeability Areal Distribution in Fluvial Sandstones Reservoir, by A. Francesconi, M. Erba, A. Puliti, and M. Rampoldi; #90956 (1995).
Search and Discovery.com
1995
Origin of Patterns of Quartz Sand Types on the Southeastern United States Continental Shelf and Implications on Contemporary Shelf Sedimentation--Fourier Grain Shape Analysis
P. Jeffrey Brown , Robert Ehrlich, Donald J. Colquhoun
Journal of Sedimentary Research (SEPM)
..." continental margin (Emery, 1977). Average slope on the shelf is approximately 1 m/km. Many coastal plain rivers drain into the Atlantic Ocean in North...
1980
An Exact Method for Characterization of Grain Shape
Robert Ehrlich, Bernhard Weinberg
Journal of Sedimentary Research (SEPM)
.... The first term in the series, RO, is equivalent to the average radius of the grain in the plane of interest. For the remainder of the terms, n...
1970
Calculation of Thermal Conductivity from Lithology and Laboratory Measurements on Oil Well Cores: ABSTRACT
Victor Vacquier
AAPG Bulletin
...) The harmonic mean thermal conductivity of the whole rock column traversed by a well is calculated from the thicknesses of the different kinds...
1981
Extending seismic bandwidth using the harmonic energy of a marine vibrator source
Tiexing Wang, Arash JafarGandomi, Hakon Aune
International Meeting for Applied Geoscience and Energy (IMAGE)
... that the total harmonic energy is, on average, about 25 dB lower than the fundamental frequency signal (Elboth et al., 2023). Notional source estimation...
2023
Orientation Of Crinoids By Current Action
W. Schwarzacher
Journal of Sedimentary Research (SEPM)
... dominates. The frequency diagrams of orientation measurements are best described by harmonic analysis. KRINSELY, D., 1960, Orientation of Orthoceracone...
1963
ABSTRACT: USING HARMONIC HYDRAULIC TESTS TO ESTIMATE FRACTURED BEDROCK PROPERTIES AND PREDICT LOCAL HETEROGENEITY; #90114 (2010)
Eric J. Guiltinan and Matthew Becker
Search and Discovery.com
...ABSTRACT: USING HARMONIC HYDRAULIC TESTS TO ESTIMATE FRACTURED BEDROCK PROPERTIES AND PREDICT LOCAL HETEROGENEITY; #90114 (2010) Eric J. Guiltinan...
2010
Sources of Shoaling in Charleston Harbor Fourier Grain Shape Analysis
Donald S. Van Nieuwenhuise, Jeffrey M. Yarus, Robert S. Przygocki, Robert Ehrlich
Journal of Sedimentary Research (SEPM)
...). Each grain is defined by a series of shape components or harmonics which represent a specific contribution to the total shape (harmonic amplitude...
1978
The Effects of Fluvial Abrasion on the Shapes of Quartz Sand Grains
Mark Peterson , Jim Mazzullo
GCAGS Transactions
... components (harmonics 2 through 24) and the relative contributions (amplitudes) of each harmonic are calculated. Each harmonic is a standard closed form...
1987
Sieve Data-Size and Shape Information
Stephen K. Kennedy, Thomas P. Meloy, T. E. Durney
Journal of Sedimentary Research (SEPM)
...-sieved into quarter-phi intervals. The distribution of all average harmonic amplitudes versus size (representative harmonics shown in Fig. 2) shows...
1985
Origin of Shape Changes of Sand and Silt in a High-Gradient Stream System
Stephen K. Kennedy , Robert Ehrlich
Journal of Sedimentary Research (SEPM)
... should be used for further analysis (Full et al. 1984). The entropy for each harmonic distribution is calculated. That harmonic with the lowest average...
1985
Estimation of Arithmetic Permeability from a Semi-Log Porosity/Log10 Permeability Regression; #41583 (2015)
Gregory Benson
Search and Discovery.com
... completely random nor perfectly correlated, with reality being somewhere between these extremes. Theoretically, a geometric permeability average approximates...
2015
Calculation of a Rate Index for the Bakken Formation (Devonian-Mississippian) in North Dakota Using Experimentally Determined Kinetics, Current Formation Temperatures, and Total Reactive Kerogen Mass
Search and Discovery.com
N/A
ESP Optimization Goes Further: Operating Frequency Beyond 60 Hz
Aliefiyan Nursanda Muklas, Bonni Ariwibowo, Hendra Kusuma, Winandar Amijaya, Dadang Darmawan
Indonesian Petroleum Association
... at XY-370 occurred at Harmonic Filter. The problem was solved by replacing the capacitor. The trial proves that we can operate ESP higher than base...
2020
Abstract: Tertiary Deltaic Cycles on Unstable Craton Margin, Banks Island, Arctic Canada, by A. D. Miall; #90972 (1976).
Search and Discovery.com
1976