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The AAPG/Datapages Combined Publications Database
Showing 44,978 Results. Searched 200,685 documents.
Applications of Hydraulics to the Study of Marine Turbidity Currents
Henry W. Menard, John C. Ludwick
Special Publications of SEPM
.... The rate of fall is equal to the mean current velocity times the tangent of the slope angle. According to this hypothesis, very coarse sand (diameter 1.0 mm...
1951
A New Physics-Based Modeling of Multiple Non-Planar Hydraulic Fractures Propagation
Jing Zhou, Hai Huang, Milind Deo
Unconventional Resources Technology Conference (URTEC)
...allel and perpendicular to the 𝑛 center line connecting nodes i and j. 𝑡 𝑖,𝑗 is the unit vector parallel to the tangent of the bent beam at n...
2015
Mineralogy and Petrography of Marine Bottom Sediment Samples off the Coast of Peru and Chile
E-An Zen
Journal of Sedimentary Research (SEPM)
... expansion studies. In a few instances, the existence of a mineral, such as rhodochrosite, is verified by X-ray fluorescence analysis, on a Norelco unit...
1959
Parameter Estimations of Complex Fracture Networks Using Pressure Transient Analysis in Fracturing-shutting Data from Shale Oil Wells
Zhiming Chen, Luming Shi
Unconventional Resources Technology Conference (URTEC)
... point and calculate the fluid efficiency, fluid loss coefficient, and fracture geometry according to the tangent of the fracture closure point. (Nolte...
2020
Appendix: Chapter 9
B. R. Kulander, S. L. Dean, B. J. Ward Jr.
AAPG Special Volumes
... perpendicular to the resultant new principal tension direction. Instead, the fracture front separates into en-echelon twist hackle faces that continue...
1990
Petrology of the Kinnikinic Quartzite (Middle Ordovician), East-Central Idaho
W. Calvin James , Robert Q. Oaks, Jr.
Journal of Sedimentary Research (SEPM)
.... Differential subsidence during deposition resulted in large lateral differences in thickness of this shallow-water unit. From a maximum preserved...
1977
Mid-Givetian Events in Western Canada: The Dawson Bay - Watt Mountain - "Slave Point" Interlude
W.K. Braun, J.E. Mathison
CSPG Bulletin
... of Member C of the Dawson Bay Formation where it crops out west of Lake Winnipegosis and Lake Manitoba. This fossiliferous unit is about equivalent...
1986
Reexamination of Mohnian Type Section: ABSTRACT
David W. Ford
AAPG Bulletin
... than Hoots' unit 5. Bulimina unvigerinaformis, formerly considered not to range above unit 6, has been found through unit 8 and rarely in unit 9...
1973
The Lower Triassic Montney Formation, West-Central Alberta
Graham R. Davies, Thomas F. Moslow,, Mike D. Sherwin
CSPG Bulletin
... eoliens a residu de deflation, qui indiquent une exposition subaerienne. Le Montney a ete divise en trios membres informels qui ont ete dates par...
1997
Interpreting Sedimentary Growth Structures from Well Log and Seismic Data (With Examples)
Richard E. Bischke
AAPG Bulletin
... growth curve in Figure 4B shows that growth initiated at the top of sequence 3 and was maximum between sequences 1 and 2 (i.e., the slope or tangent...
1994
Investigation and Field Application of Ultra-High Density Fracturing Technology in Unconventional Reservoirs
Fanhui Zeng, Yu Zhang, Jianchun Guo, Su Diao, Wenxi Ren, Bintao Zheng
Unconventional Resources Technology Conference (URTEC)
... is called displacement interruption that can be represented as[30, 31]. 8 URTEC-208347-MS (21) The boundary conditions of the i-th fracture unit...
2021
The Siluro-Devonian Rocks of the Ouachita Mountains
Robert T. Sellars Jr.
Tulsa Geological Society
... Synclinorium. In Saline County (Sterling, et al., 1966), the Blaylock is absent as a mappable unit, but may be represented by a few feet of thin...
1967
Optimizing Well Placement Strategy in a Giant Fractured Basement Gas Reservoir through Integrated Subsurface Analysis. A Case Study of the Suban Field
Jamal Alaydrus, Safitri Nurida, Hani Mohede
Indonesian Petroleum Association
... of sandstone is developed that is informally termed 'Durian Mabok Sandstone Unit' or DMS. It is usually developed as quartzarenite or quartzwacke...
2018
An Automated Grain-shape Classifier
William H. Glezen, John C. Ludwick
Journal of Sedimentary Research (SEPM)
... and tangent relations respectively. The average flight velocity parallel to the chute floor is Vs = (Vsd + Vsi)/2; the elapsed time of a trajectory...
1963
Non-opaque and Opaque Grain Fabrics of Siltstones in Red Peak Member (Triassic), Central Wyoming
M. Dane Picard, Douglas D. Beckmann
Journal of Sedimentary Research (SEPM)
..., p. 23). Any component that behaves as a single unit in relation to an applied force is a fabric element, specifically, a detrital fragment...
1966
Transfer Learning with Recurrent Neural Networks for Long-term Production Forecasting in Unconventional Reservoirs
Syamil Mohd Razak, Jodel Cornelio, Young Cho, Hui-Hai Liu, Ravimadhav Vaidya, Behnam Jafarpour
Unconventional Resources Technology Conference (URTEC)
... 𝑼) ∈ 𝑅&! ×&! , 𝑾) ∈ 𝑅&! ×&" and 𝒃) ∈ 𝑅&! ×# . 𝑡𝑎𝑛ℎ(⋅) is an element-wise hyperbolic tangent activation function that scales the vector 𝒊! to be between...
2021
Machine Learning Applications for Reservoir Pressure Trend Prediction in Potash Area of Delaware Basin
Olabode Thomas Ajibola, James Sheng, Phillip McElroy, Ebru Ulna
Unconventional Resources Technology Conference (URTEC)
... Hyperbolic Tangent Rectified Linear Unit (ReLU) Exponential LU Table 1. Comparison of traditional and modern activation functions While building...
2022
Paleobathymetry of Cretaceous Greenhorn Sea in Eastern Colorado
Don L. Eicher
AAPG Bulletin
..., the sequence overlies another thin persistent unit, the Morrison Formation, which lacks the patchy distribution that would have resulted from local uplift after...
1969
Deposition and Stratification
J. C. Harms, J. B. Southard, R. G. Walker
Special Publications of SEPM
... of transport, or a combiTemporal decrease in bed load is unimportant nation of both. because the quantity above a unit area of the bed is never very...
1982
Sequence Stratigraphy of Miocene Carbonate Complexes, Las Negras Area, Southeastern Spain: Implications for Quantification of Changes in Relative Sea Level: Chapter 16
Evan K. Franseen, Robert H. Goldstein, Tracey E. Whitesell
AAPG Special Volumes
... Purchena (SE Cordilleras Beticas): Cuadernos Geologia, v. 5, p. 79-88. Dabrio, C.J. 1975, La sedimentacion arrecifal Neogena en la region del Rio...
1993
Evidence for an Aeolian Concentration of Crystalline Hematite Deposits Observed within Sinus Meridiani - Abstract
S. E. Pitiss, V. L. Sharpton
Alaska Geological Society
... of buried ‘stealth’ craters at smaller (>80 m) diameters grading to heavily degraded craters at larger (<150 m) diameters exists. This unit (Unit 0...
2003
A History of the Principles and Methods of Mechanical Analysis
W. C. Krumbein
Journal of Sedimentary Research (SEPM)
.... Cordier, M., Memoire su.r les substances minerales dites en masse qui entrent dans la composition des roches volcaniques de tousles ages: Annales de...
1932
Petrology and Diagenesis of Carbonate Eolianites of Northeastern Yucatan Peninsula, Mexico
William C. Ward
AAPG Special Volumes
... direction. Many leeward cross strata meet the underlying surface at acute angles; others are tangent to the base. Windward crossbeds, for the most part...
1975
LWD Resistivity Modelling and Geosteering for Horizontal Well Planning and Drilling, Iagifu-Hedinia Field, Papua New Guinea
J. Edwards, J. E. Livingston, S. P. Franklin, T. Eme, R. Kila, D. Kisombo, S. Madu
Papua New Guinea (PNG) Petroleum Convention Proceedings
...%. Permeability is up to 2000 md, averaging between 600-800 md in the Toro A and B sandstones and 400-500 md in the Toro C unit. These units are separated by shales...
1996
Borehole Electrical Images as a Reservoir Characterization Tool in the Merecure Formation, Guarico 13 Field, Eastern Venezuela
Helena Gamero, Carmen Contreras, Pieter Pestman, Akira Mizobe
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
... del ambiente sedimentario, delinear caracterfsticas del yacimiento, y llevar a cabo analisis estructural, fracturas y de esfuerzos en el area...
2000