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The AAPG/Datapages Combined Publications Database

Showing 33,158 Results. Searched 195,696 documents.

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Effect of Particle Shape on the Packing of Carbonate Sands and Gravels

Robert J. Vinopal , Alan H. Coogan

Journal of Sedimentary Research (SEPM)

...------------------------- configuration of varied shape packs. Consequently, no mathematical statement exists that explains random packing processes, the wall effect...

1978

Milankovitch Period Uncertainties and Their Impact On Cyclostratigraphy

David Waltham

Journal of Sedimentary Research (SEPM)

.../precession); and (iii) problems with verifying that observed cycles are Milankovitch driven at all (the probability of a random period ratio matching...

2015

3-D Analysis and Model Construction

Charles Kerans, Scott W. Tinker

Special Publications of SEPM

... effect on the accuracy of a 3-D model. The techniques for distribution of log, core, seismic, and production data within the 3-D framework also have...

1997

COMPARISON OF REFLECTANCE DATA FOR VARIOUS MACERALS FROM COALS OF THE KOOTENAY GROUP, SOUTHEASTERN BRITISH COLUMBIA

A.R. Cameron

North Dakota Geological Society

... were obtained; 1. mean random reflectances on vitrinite A ranged from 0.96 to 1.41 in the 12 seams at Weary Ridge, and from...

1984

AAPG/Datapages Discovery Series No. 7: Multidimensional Basin Modeling, Chapter 17: Constraining the Gamble-Stochastic Techniques and Quantifying Uncertainties in Basin Modeling

Zwach, C., Arnd Wilhelms

AAPG Special Volumes

... a quantified uncertainty of basin modeling results. Such studies should include the simultaneous (random) variation of every important input parameter...

2003

Log-Linear Models, Markov Chains and Cyclic Sedimentation

Timothy R. Carr

Journal of Sedimentary Research (SEPM)

... Markovian processes have been used by a number of investigators to test stratigraphic sections against a null hypothesis of a random succession...

1982

Rooting Against a Recovery?

Russell Evans

Oklahoma City Geological Society

... offcially began in the years just before statehood, leaving an early and ongoing mark on the state’s economic geography. The legacy effect...

2016

Application and Extension of Fine Fault Recognition Technology in Surrounding Area of Penglai 19-3 Oilfield, Bohai Bay Basin, Eastern China, #20436 (2018).

Xugang Ma, Donghong Zhou, Dingyou Lv, Dayong Guan, Hongguo Zhang

Search and Discovery.com

... that, with the increase of the number of samples, the noise interference decreases, and the recognition effect improves gradually, and the effect of 24 and 32...

2018

III Columbia Oil & Gas Investment Conference: Conventional & Unconventional Hydrocarbon Resources - Abstracts

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... of the seismic data, and rock properties analysis. The rock physics challenges to be covered include anisotropy, pore type effect, mud filtrate invasion, sonic...

2008

Geostatistical Integration of Crosswell Data for Carbonate Reservoir Modeling, Mcelroy Field, Texas

William M. Bashore, Robert T. Langan, Karla E. Tucker, Paul J. Griffith

Special Publications of SEPM

..., the source spacing is usually increased, which permits faster logging speeds. However, if the signal-to-noise ratio decreases below a tolerable threshold...

1995

Oil families and their inferred source rocks in the Barents Sea and northern Timan-Pechora Basin, Russia

Meng He, J. Michael Moldowan, Alla Nemchenko-Rovenskaya, Kenneth E. Peters

AAPG Bulletin

...:10.1038/19847.Seifert, W. K., and J. M. Moldowan, 1979, The effect of biodegradation on steranes and terpanes in crude oils: Geochimica et Cosmochimica Acta, v. 43, p...

2012

Regional detection and monitoring of injection-induced seismicity: Application to the 2010–2012 Youngstown, Ohio, seismic sequence

S. G. Holtkamp, M. R. Brudzinski, and B. S. Currie

AAPG Bulletin

... shear stress in an elastic sense to bring a fault closer to failure, but generally the mass of injected liquids is too low to have a profound effect...

2015

Optical Methods for Monitoring Treating Chemicals in Oilfield Water Systems

Dale F. Brost, Frank M. Rexach, Gregory A. Winslow

Indonesian Petroleum Association

... housings of both optical channels. To assess the effect of temperature on instrument response, measurements were taken over an 8 hour period...

1991

Pore-Scale Characterization of Shales Using Dendroidal Theoretical Pore-Network Model

Da Zheng, Yuliana Zapata, Zulfiquar A. Reza

Unconventional Resources Technology Conference (URTEC)

... based on the hysteresis effect of isothermal adsorption/desorption measurements and characterizes pore-throat distribution using mercury drainage...

2018

Formation Porosity and Fluid Content from Velocity Logs

E. R. Denton

CSPG Bulletin

... of interest to the geophysicist. Figure 2. Section of an original field log showing noise spikes. End_Page 81------------------------- Figure 2. shows...

1956

Recent Advances in the Characterization of Unconventional Reservoirs with Wide-Azimuth Seismic Data

Ran Bachrach, Colin M. Sayers, Sagnik Dasgupta, Josimar Silva, Stefano Volterrani

Unconventional Resources Technology Conference (URTEC)

... within the limit imposed by the wavelet bandwidth and the signal-to-noise ratio. The low frequency information is derived by integrating seismic velocity...

2013

Computer-Generated Surfaces and Grids of the Geometry, Rock Type, and Chemistry of a Bedded Mineral Deposit: Chapter 4

Walter J. Bawiec, Wilbur D. Grundy

AAPG Special Volumes

..., or regresses, estimates based on the proportion of total sample variance accounted for by random noise. The noisier the data set, the less the individual samples...

1992

Crystal Growth Mechanisms of Quartz Overgrowths in a Cambrian Quartz Arenite

Astrid Makowitz , Duncan Sibley

Journal of Sedimentary Research (SEPM)

... crystals: AIChE Journal, v. 39, p. 1472-1482. WHITE, E.T., BENDIG, L.L., AND LARSON, M.A., 1976, The effect of size on the growth rate of potassium sulfate...

2001

Low-Frequency De-Ghosting Method to Enhance Basement Layer Continuity Image in Foxtrot South East Area, North West Java Sea

Ryan Bobby Andika, Hudzaifah, Deny Martian, Nurudin Mahmud, Sri Sadono

Indonesian Petroleum Association

...-ghosting, gives a clearer continuity image of the basement layer, which at first was only recognized as a noise signal. This finding will certainly...

2019

The Rawa Besar Lake Area (Depok, Indonesia) Study Using Ground Penetrating Radar; #80291 (2013)

Annisa Cinintia Finahsan and Supriyanto Suparno

Search and Discovery.com

... of the data, by increasing the value of its signal-to-noise ratio. Each data has different characteristics, so the processing is done in different processes...

2013

Mathematical Statistics in Oil-Field Geology

L. F. Dement’yev

Petroleum Geology: A Digest of Russian Literature

... is referred to the category of random (with which mathematical statistics is concerned) but are subject to definite geological regularities and, second...

1964

An Imaging Method for the Porosity of Sedimentary Rocks: Adjustment of the PMMA Method--Example of a Characterization of a Calcareous Shale

S. Sammartino, M. Siitari-Kauppi, A. Meunier, P. Sardini, A. Bouchet, E. Tevissen

Journal of Sedimentary Research (SEPM)

... (1/1) versus the gray-level range of the autoradiograph. B) Deconvolution of the total relative uncertainty as function of each kind of parameter (sample...

2002

Settling Convection and Grain Size Analysis: DISCUSSION

David J. A. Williams

Journal of Sedimentary Research (SEPM)

... CONVECTION The recent paper by Kuenen (1968) suggested that the effect of settling convection had been overlooked or ignored as being a secondary...

1969

True-Azimuth 3D Surface-Related Multiple Elimination

Roald van Borselen, Rob Hegge, Peter Aaron, Simon Barnes, Andrew Long

Petroleum Exploration Society of Australia (PESA)

... operators to correct for offset deconvolution and Radon demultiple, and the 3D convolutions mentioned above. cannot subsequently cope with multiples...

2009

Phase Unwrapping: A Review of Methods and a Novel Technique

Sam T. Kaplan

Search and Discovery.com

.... It is this branch-cut that manifests as 2S discontinuities in phase, and various unwrapping methods remove its effect, allowing us to work with the logarithm...

Unknown

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