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The AAPG/Datapages Combined Publications Database
Showing 718 Results. Searched 200,693 documents.
Hemispheric Asymmetry of the Marine Stratigraphic Record: Conceptual Proof of a Unipolar Ice Cap
Martin A. Perlmutter, Roy E. Plotnick
Special Publications of SEPM
...). As indicated, the evaluation clearly identifies the major harmonic of the precession cycle, which is around 23 kyr. This harmonic accounts for most...
2003
The Geometry and Thickness of Deformation-band Fault Core and its Influence on Sealing Characteristics of Deformation-band Fault Zones
Z. K. Shipton, J. P. Evans, L. B. Thompson
AAPG Special Volumes
... grid blocks have the same host rock and fault zone permeabilities, the area-weighted harmonic average of fault zone thickness (tf) can be used...
2005
Calculating Lunar Retreat Rates Using Tidal Rhythmites
Erik P. Kvale , Hollis W. Johnson , Charles P. Sonett , Allen W. Archer , Ann Zawistoski
Journal of Sedimentary Research (SEPM)
... 1966). However, the Earth's oceans do not conform to equilibrium tidal theory. For this reason the concept of harmonic analysis of tidal constituents...
1999
Unraveling the Origin of Carbonate Platform Cyclothems in the Upper Triassic Durrenstein Formation (Dolomites, Italy)
Nereo Preto, Linda A. Hinnov
Journal of Sedimentary Research (SEPM)
... sedimentary systems: concepts for a high-resolution analysis: Sedimentary Geology, v. 128, p. 201-221. THOMSON, D.J., 1982, Spectrum estimation and harmonic...
2003
Effect of Faulting on Fluid Flow in Porous Sandstones: Petrophysical Properties
Marco Antonellini, Atilla Aydin
AAPG Bulletin
... of a harmonic mean average to correct the measurements. The best match between permeability in zones 1 cm thick and in zones less than 1 cm thick was obtained...
1994
Thermal effects of Zechstein salt and the Early to Middle Jurassic hydrothermal event in the central Polish Basin
Gary W. Zielinski, Pawel Poprawa, Jan Szewczyk, Izabella Grotek, Hubert Kiersnowski, Robyn L. B. Zielinski
AAPG Bulletin
... area of the central Polish Basin reveal average geothermal gradient (36C/km), thermal conductivity of Mesozoic strata (k = 2.29 W/m K), and present-day...
2012
Effects of Porosity Models on Thermal History in Geohistory Models, #41392 (2014)
Alton A. Brown
Search and Discovery.com
.... Harmonic Average BTC = ∑ Li i =1 n i =1 Power Average = Li ∑ TC Averaging TC of heat flow normal to infinite layers, where L i are n n i...
2014
Oil and Gas Property Evaluation: Chapter 12: Part III. Economic Aspects of the Business
Gene B. Wiggins III
AAPG Special Volumes
..., the recoverable condensate is generally determined by multiplying the average condensate yield in barrels per million cubic feet (MMCF) of gas by the recoverable...
1992
Analysis of Fluid and Heat Regimes in Sedimentary Basins: Techniques for Use with Large Data Bases
S. Bachu, C. M. Sauveplane, A. T. Lytviak, Brian Hitchon
AAPG Bulletin
... previously by Jones and Johnson (1983), for the Swan Hills area of Alberta, which consists of a sedimentary block of 38,300 km3 with an average thickness...
1987
Rhythmic Sedimentation in a Mid-Pennsylvanian Delta-Front Succession, Magoffin Member (Four Corners Formation, Breathitt Group), Eastern Kentucky: A Near-Complete Record of Daily, Semi-Monthly, and Monthly Tidal Periodicities
Rhonda M. Adkins, Kenneth A. Eriksson
Special Publications of SEPM
... liptical orbit around the earth. Perigean (minimum lunar disliptical tance tance) periods are characterized by higher-than-average tides, periods...
1998
The Milankovitch Interpretation of the Latemar Platform Cycles (Dolomites, Italy): Implications for Geochronology, Biostratigraphy, and Middle Triassic Carbonate Accumulation
Nereo Preto, Linda A. Hinnov, Vittorio De Zanche, Paolo Mietto, Lawrence A. Hardie
Special Publications of SEPM
... to a timescale that is five times shorter than this astronomically calibrated estimate; similar discrepancies arise when the average duration of Triassic...
2004
Application of High-Resolution Sequence Stratigraphy to the Upper Rotliegend in the Netherlands Offshore: Chapterr 11: Recent Applications of Siliciclastic Sequence Stratigraphy
Chang-Shu Yang, Swie-Djin Nio
AAPG Special Volumes
...), sequence RO4.2 (highstand systems tract). Damp sand-flat subfacies showing water escape structures (es), parallel laminations with clay pebbles at the base...
1993
Uncertainty in well test and core permeability analysis: a case study in fluvial channel reservoirs, northern North Sea, Norway
Shi-Yi Zheng, Patrick W. M. Corbett, Alf Ryseth, George Stewart
AAPG Bulletin
... average, where the exponent p can range between 1 (arithmetic average) and -1 (harmonic average). Statistically, the exponent p (i.e., kp) should lie...
2000
Structural heterogeneity and permeability in faulted eolian sandstone: Implications for subsurface modeling of faults
Zoe K. Shipton, James P. Evans, Kim R. Robeson, Craig B. Forster, Stephen Snelgrove
AAPG Bulletin
... is the harmonic average of a variety of data sets. For our data set, this relationship would predict that the fault should be about 4.7 cm thick where the fault...
2002
Advances in Micromodeling using Resistivity Borehole Images
John G. Manchuk, David L. Garner, Clayton V. Deutsch
CSPG Bulletin
... of the fine scale true formation conductivity. To assess the consistency between the HMI and Rt log, the harmonic average of C−1ij with a vertical scale...
2015
Production Forecasting in Shale Reservoirs through Conventional DCA and Machine/Deep Learning Methods
Cenk Temizel, Celal Hakan Canbaz, Onder Saracoglu, Dike Putra, Ali Baser, Tomi Erfando, Shanker Krishna, Luigi Saputelli
Unconventional Resources Technology Conference (URTEC)
... forecasting technique for unconventional hydrocarbon plays Auto-Regressive Integrated Moving Average (ARIMA) method is a statistical modeling practice...
2020
Magnetic Anomalies and Crustal Structure in Eastern Gulf of Mexico
D. I. Gough
AAPG Bulletin
...., S. Hendricks, W. E. Daniels, and D. C. Jensen, 1964, Computation of the main geomagnetic field from spherical harmonic expansions: N.A.S.A. Pub. TMX...
1967
Introducing Geological Processes in Reservoir Models
Janice Liwanag
GEO ExPro Magazine
... upscaling methods such as arithmetic, geometric or harmonic averaging do not consider the fact that the data is biased to a specific grid scale...
2005
Identification of facies and their importance in interpretations of depositional environments and associated hydrocarbon play elements in fine-grained rocks: Examples from the Greenhorn Formation, Colorado
Jason A. Flaum, Justin E. Birdwell, Katherine L. French
International Meeting for Applied Geoscience and Energy (IMAGE)
... 12.7 6.05 21.1 109 15.4 150 5 2.78 10.1 6.44 23.8 122 10.1 137 Table 1. Average concentrations of total organic carbon (TOC...
2022
Chacachare Field Trip Guide
Curtis Archie
Geological Society of Trinidad & Tobago
... of the formation to contain more slates and sericitic phyllites than average, with some thin interbedded sericitic quartzites. Higher in the formation...
2004
Folds and Folding: Part II
Rasoul Sorkhabi
GEO ExPro Magazine
... they are called harmonic folds. Fold is a kind of strain in the rock, and knowledge of the attitude and dimensions of folds helps us understand the direction...
2013
Non-Linearity in Decline Behavior of Unconventional Wells
James R. Gilman, Sepehr Fadaei
Unconventional Resources Technology Conference (URTEC)
... 0.006328 2 0.006328 1a , 1b where C is a dimension constant and other terms have their standard definitions. If the ratio of average total mobility...
2013
Reservoir Rocks Behaving Differently
Thomas Smith
GEO ExPro Magazine
... the average value of the frequency spectrum and B has resulted from the spectral broadening due to the seismic wave propagation in the reservoir. New...
2014
Application of Seismic Shear Wave Refraction for Subsurface Soil Dynamic Investigation at Bukit Changgang, Banting, Selangor
Abdul Rahim Samsudin, Khairul Anuar Mohd. Nayan, Umar Hamzah
Geological Society of Malaysia (GSM)
..., and with it the foundation block, undergoes harmonic oscillations of the form uoexp[i(mt + ell) with frequency dependent amplitude and phase lag, U o =uo(o1) and ell...
1997
Low-frequency data reconstruction for full-waveform inversion
Ramzi Djebbi, Maiza Bekara, Jaime Ramos-Martinez, Nizar Chemingui
International Meeting for Applied Geoscience and Energy (IMAGE)
... of the signal and limit the deviation from the linear harmonic assumption. Furthermore, the reconstruction is naturally constrained within the data...
2022