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The AAPG/Datapages Combined Publications Database
Showing 718 Results. Searched 200,619 documents.
Multi-modal Data-assisted Prediction and Analysis of Shale Gas Production Performance at Early Production Stage in Weirong Shale Gas Field, Sichuan Basin, China
Tianrui Ye, Yitian Xiao, Yong Zhao, Haitao Cao, Chunyan He
Unconventional Resources Technology Conference (URTEC)
... and geological, engineering, and production data. The final EUR is obtained by the weighted average of results from different models using Generalized...
2023
Temporal Trends in Precipitation and Hydrologic Responses Affecting the Barton Springs Segment of the Edwards Aquifer, Central Texas
Brian B. Hunt, Brian A. Smith, Raymond Slade Jr., Robin H. Gary, W. F. Kirk Holland
GCAGS Transactions
... and annual harmonic mean statistics of daily mean streamflow for 620 U.S. Geological Survey streamflow-gaging stations in Texas through water year...
2012
Morphology and Hydraulic Significance of Climbing Ripples with Superimposed Micro-Ripple-Drift Cross-lamination in Lower Quaternary Lake Silts, Nebraska
K. O. Stanley
Journal of Sedimentary Research (SEPM)
... of ripples in the silt "summer" layer of the basal varve couplet indicate a simple-harmonic variation of local flow velocity with time. Such simple...
1974
Fault Representation in Automated Modeling of Geologic Structures and Geologic Units: Chapter 10
Steven Zoraster
AAPG Special Volumes
... an elliptical pattern when projected against a vertical plane aligned along the fault strike. Other studies have produced equations which relate the average...
1992
Formation and Deformation of Subglacial Intrusive Clastic Sheets in the Dwyka Formation of Northern Natal, South Africa
V. Von Brunn, C. J. Talbot
Journal of Sedimentary Research (SEPM)
... the diamictite and are parallel to the top surface and have harmonic corrugations (Fig. 4). Fine striations in some surface troughs parallel the large linear...
1986
Exploratory Flow-Duct Experiments on Combined-Flow Bed Configurations, and Some Implications for Interpreting Storm-Event Stratification
R. William Arnott , John B. Southard
Journal of Sedimentary Research (SEPM)
... harmonic motion in one of the reservoir tanks. This duct was used earlier for bed configurations in purely oscillatory flows; for details, see Southard...
1990
Shallow Structure of Black Sea: Structure
David A. Ross, Elazar Uchupi, C. O. Bowin
AAPG Special Volumes
.... Cain, J. C., et al., 1968, Computation of the main geomagnetic field from spherical harmonic expressions: Data Users Note NSSDC 68-11, NASA Data Center...
1974
Perspective Correlation
T. Binnert Haites
AAPG Bulletin
... resembles very closely a figure, which--in projective geometry--is called a perspectivity (Fig. 1). Perspectivities obey simple cross-ratios. Harmonic...
1963
Problems of Plate Tectonics and Continental Drift
Paul S. Wesson
AAPG Special Volumes
... harmonic does not determine the cell pattern in the simple way usually implied (Lyustikh, 1967); also, the accretion process would release so much energy...
1974
Contouring by Machine: A User's Guide
Richard F. Walters
AAPG Bulletin
... maps. Simplicity of Utilization A fundamental assumption made by most contour program designers is that the average user is not a specialist...
1969
Deep Mantle Convection Plumes and Plate Motions
W. Jason Morgan
AAPG Bulletin
... of mass deficiency M, located a distance D Fig. 4. Isostatic gravity map of earth constructed from spherical harmonic coefficients of degree 6 through 16...
1972
Geophysical Studies of Basement Geology of Southern Peninsula of Michigan
William J. Hinze , Richard L. Kellogg , Norbert W. O'Hara
AAPG Bulletin
... of the main geomagnetic field from spherical harmonic expansions: NASA Data Users Note NSSDC 68-11, 45 p. Cohee, G. V., 1945, Sections and maps, Lower...
1975
The effect of temperature on sealing capacity of faults in sandstone reservoirs: Examples from the Gullfaks and Gullfaks Sor fields, North Sea
Jonny Hesthammer, Per Arne Bjorkum, Lee Watts
AAPG Bulletin
...) (see also Hesthammer and Fossen, 2001). The harmonic average dip of bedding for both fields (observed from vertical wells only) is approximately...
2002
A 3-D ground-penetrating radar and wavelet transform analysis of the morphology of shoreface deposits in the Upper Cretaceous Ferron Sandstone Member, Utah
Keumsuk Lee, Robert Szerbiak, George A. McMechan, Namsoon Hwang
AAPG Bulletin
... (and thus paleotopographic surfaces); the associated radar units (RUs) have a uniform thickness (on average 0.8 m [2.6 ft]). The RUs and the adjacent...
2009
Characterization of deformation bands associated with normal and reverse stress states in the Navajo Sandstone, Utah: Reply
John G. Solum, J. P. Brandenburg, Stephen J. Naruk
AAPG Bulletin
..., equivalent to the harmonic average permeability calculated from the number and width of deformation bands in the core, the measured permeability of the bands...
2012
Hydrocarbon potential of Ordovician–Silurian successions in Akkas field, western desert of Iraq
Mohamed W. Alkhafaji, Zeki A. Aljubouri, Imad A. Aldobouni, and Ralf Littke
AAPG Bulletin
..., whereas others are dark colored and organic rich. The average TOC value of the Akkas Formation in the five wells is 2.73%, with a range of 0.16%–7.3...
2015
The gas isotope interpretation tool: A novel method to better predict production decline
Li Gao, Sheng Wu, Andrei Deev, Robert Olson, Fausto Mosca, Shuichang Zhang, Yunyan Ni, Qi Qu, Randy LaFollette, Guanyi Chen, and Yongchun Tang
AAPG Bulletin
... equations (exponential, hyperbolic, and harmonic), which are still widely used (Arps, 1945, 1956). Later studies kept adding new insights...
2017
Hypogenic karstic cavities formed by tectonic-driven fluid mixing in the Ordovician carbonates from the Tarim Basin, northwestern China
Lei Jiang, Anjiang Shen, Zhanfeng Qiao, Anping Hu, Zhaohui Xu, Heng Zhang, Bo Wan, and Chunfang Cai
AAPG Bulletin
.... The blue curves and associated numbers represent the harmonic curves and ages, respectively, whereas the dashed blue line represents the inconcordant...
2024
Oil & Gas Property Evaluation: A Geologists View; #40640 (2010)
R.W. Von Rhee
Search and Discovery.com
... Curves Exponential Hyperbolic Harmonic Exponential Decline Curves Decline Rate is Constant Rate-Time is linear on semi-log plot 27 Presenter’s Notes...
2010
Capturing Interwell Scale Heterogeneity from Process-Based Modelling for Reservoir Flow Simulations: A Study of the Middle Triassic Latemar Platform, Dolomites, North Italy; #40793 (2011)
Graham Felce, Fiona Whitaker, Gregory Benson, and Tom Leadbeater
Search and Discovery.com
... Calculate the absolute log permeability difference between the current layer and the layer below (deeper layer) 2) Average number of missing time...
2011
Production Forecasting for Shale Gas Well in Transient Flow Using Machine Learning and Decline Curve Analysis
Dongkwon Han, Sunil Kwon, Hanam Son, Janghyun Lee
Unconventional Resources Technology Conference (URTEC)
... performance. This is assumed in the Arps DCA methodology. If the decline index (b) is 0 and the exponential is 1, a harmonic equation is applied...
2019
Underground Storage of Carbon Dioxide in the Harvey Area, South-West Western Australia
David Lim, Geoff Strachan, Dominique Van Gent, Sandeep Sharma
Australian Petroleum Production & Exploration Association (APPEA) Journal
... (and highpermeability) facies and created local barriers or baffles with the paleosol objects. An alternative facies model was built using the seismic response...
2017
Evolution of Structural Models of Two Anticlines in the Papuan Thrust Belt by Application of Magnetotellurics
Lindsay Ross
Papua New Guinea (PNG) Petroleum Convention Proceedings
... in the subsurface. The location of this unit must be ex trapolated by harmonic projection of prognosed stratigraphic thickness beneath the magnetotelluric...
1993
Using Machine Learning Methods to Identify Coals from Drilling and Logging-While-Drilling LWD Data
Ruizhi Zhong, Raymond L. Johnson Jr., Zhongwei Chen
Unconventional Resources Technology Conference (URTEC)
.... The average density for four major coal ranks is: 1.29 g/cc for lignite coal, 1.30 g/cc for subbituminous coal, 1.32 g/cc for bituminous coal...
2019
Unlocking Unconventional Reservoir with a Fully Integrated Reservoir Simulation
Peng Ye, Valerie Hallam, Frank Hovland, Lee Nguyen, Faisal Rasdi
Unconventional Resources Technology Conference (URTEC)
.... Permeability is upscaled using geometric averaging, or harmonic averaging in some reservoirs, and conditioned based on facies and variogram analysis...
2020