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The AAPG/Datapages Combined Publications Database
Showing 97,694 Results. Searched 200,293 documents.
Fracture Definition by Surface Seismic at the Bluebell-Altamont Field, Uinta Basin, Utah
Norman Harthill, C. Richard Bates, Heloise B. Lynn, K. Michelle Simon
Rocky Mountain Association of Geologists
... to define the orientation of open gas-filled fractures. In the Bluebell-Altamont field, we acquired two orthogonal multi-component reflection seismic...
1997
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)
... (PCA) are presented. Then different machine learning algorithms and data manipulation techniques are introduced. Next, two sets of results from six...
2019
Automated, Quantitative Assessment of Basin History from a Multiwell Analysis
Edward W. Mason, Robert Ehrlich
AAPG Bulletin
.... Evans, J. C., R. Ehrlich, D. Krantz, and W. Full, 1992, A comparison between polytopic vector analysis and empirical orthogonal function analysis...
1995
Paleocurrent Analysis of Trough Cross Stratification
R. H. Dott, Jr.
Journal of Sedimentary Research (SEPM)
...). FIG. 2. Stereonet plot showing poles to cross sets (solid dots) and plunge of trough axes (circles). Note almost equal numbers of oppositely-plunging...
1973
Depths of Modern Coastal Sand Clinoforms
Neil C. Mitchell, Gerhard Masselink, John M. Huthnance, Luis M. Fernandez-Salas, Francisco J. Lobo
Journal of Sedimentary Research (SEPM)
... stresses at the rollovers. Two sets of values are shown in the right-hand graphs where two grain-size values are given in Table 1. Dotted lines...
2012
Campanian Paleoseismites of the Elk Basin Anticline, Northern Bighorn Basin, U.S.A.: A Record of Initial Laramide Deformation
William T. Jackson, Jr.,, Mervin J. Bartholomew, William R. Dupré, Taylor F. Armstrong, Kevin G. Stewart
Journal of Sedimentary Research (SEPM)
..., Bulletin, v. 113, p. 482–494. Caputo, R., 1995, Evolution of orthogonal sets of extensional joints: Terra Nova, v. 7, p. 479–490. Cross, T.A., 1986...
2016
Structural Architecture of the Gorgon Platform, North West Shelf, Australia
K. D. McCormack, K. McClay
Petroleum Exploration Society of Australia (PESA)
.... Numbered circles represent Fault Set 1 to 4 identified and discussed in this study. TWT = two-way travel time. Gorgon 1, North Gorgon 2, North Gorgon...
2013
Rethinking the Incised-Valley Fill Paradigm For Campanian Book Cliffs Strata, Utah–Colorado, U.S.A.: Evidence For Discrete Parasequence-Scale, Shoreface-Incised Channel Fills
Simon A.J. Pattison
Journal of Sedimentary Research (SEPM)
... (white circles), and Shell cores (black circles) are shown. Distances between adjacent measured sections are projected orthogonal to the N14°E...
2018
Rate Transient Effects of Various Complex Fracture Network Topologies in Unconventional Gas Reservoirs: A Numerical Simulation Study
Jiamin Jiang, Rami M. Younis, Leslie Thompson, Zhe Liu
Unconventional Resources Technology Conference (URTEC)
... for accurately modeling. Fig. 1: Schematic diagram of the types of fracture with various levels of complexity (Warpinski et al. 2008). Two classes...
2015
Magnetic Stratigraphy and Tectonic Rotation of the Lower Miocene (Type Saucesian) Rincon Formation, Ventura and Santa Barbara Counties, California
Donald R. Prothero, Stacey G. Rapp
Pacific Section SEPM
... reported from nearby rock units in the Transverse Ranges. The Tajiguas Landfill section had three zones of reversed polarity alternating with two zones...
2001
Abstract: Rift Deformation Produced by Combined Extension and Shearing
Martha O. Withjack
Earth Science Bulletin (WGA)
... lithospheric segments. If the axis and displacement direction are not orthogonal, both extension and shearing contribute to the rift deformation...
1984
Abstract: AFMAG: Geotech’s New Airborne Audio Frequency Electromagnetic (EM) Systemn
Bob Lo and Petr Kuzmin
Houston Geological Society Bulletin
... to damp vibrations and de-rotate the electromagnetic (EM) fields respectively. Three orthogonal coils are used to measure the horizontal and vertical...
2004
Abstract: Structural Evolution and Basin Development of the Rukwa Rift Basin, Southwest Tanzania
Nurul Syafiqah Harun
Geological Society of Malaysia (GSM)
... to the opening dynamics of the rift and its significance to the evolution of the EARS. Two main models have been proposed in many studies...
2017
Rift Deformation Produced by Combined Extension and Shearing: ABSTRACT
Martha O. Withjack
AAPG Bulletin
... lithospheric segments. If the axis and displacement direction are not orthogonal, both extension and shearing contribute to the rift deformation. In clay...
1984
Oblique to Orthogonal Convergence Across the Turan Block in the Post-Miocene
Nikos Lyberis, Geoff Manby
AAPG Bulletin
...Oblique to Orthogonal Convergence Across the Turan Block in the Post-Miocene Nikos Lyberis, Geoff Manby 1999 1135 1160 83 7 The 2-17-km-thick, post...
1999
Landsat Linear Features and Incipient Rift System Model for the Origin of Base Metal and Petroleum Resources of Northern Alaska
Paul A. Metz, Alyce Egan, Otto Johansen
CSPG Special Publications
... region to the east and the lower Kuskokwim region to the west. The Alaska Peninsula is characterised by two major linear sets at approximately sixty...
1982
Application of an Inverse Method for Calculating Three-Dimensional Fault Geometries and Slip Vectors, Nun River Field, Nigeria
Hugh G. Kerr, Nicky White
AAPG Bulletin
... across a fault (i.e., the extension direction) can no longer be assumed to be orthogonal to the average strike of the fault. Therefore, two...
1996
Seismic expression of fracture-swarm sweet spots, Upper Cretaceous tight-gas reservoirs, San Juan Basin
Bruce S. Hart
AAPG Bulletin
.... Integration of two-dimensional seismic lines and log-based mapping suggests that the basin is underlain by an orthogonal network of predominantly...
2006
Polycyclic Rifting - An Interpretation of Gravity and Magnetics in the North West Shelf
V. Anfiloff
Petroleum Exploration Society of Australia (PESA)
... of conjugate orthogonal structures. In the coastal part of the Fitzroy Graben, there are two sets of orthogonal intersections of gravity highs and lows...
1988
Chapter 10: Reservoir Modeling and Fluid-Flow Simulation, Ivie Creek Case-Study Area - Geological and Petrophysical Characterization of the Ferron Sandstone for 3-D Simulation of a Fluvial-Deltaic Reservoir (MP-02-6)
C.B. Forster, S.H. Snelgrove, J.V. Koebbe
Utah Geological Survey
.... These gaps are repaired either by terminating a line against another line (as in the two upper circles), or by extending the line to the domain boundary...
2001
Paleomagnetic Studies of the Samoan Islands: Results from the Islands of Tutuila and Savaii
Barbara Keating
Circum Pacific Council Publications
.... Orthogonal plots of the results of alternating field demagnetization. These plots Indicate that most samples have but one component of magnetization...
1985
Observations on Joint Zones in Moravia, Czechoslovakia
Miroslav Plicka
Utah Geological Association
... Karst, for instance, they control the shape of dry valleys. Cave tunnels follow joint zones and, especially at the crossing of two sets, sinkholes...
1974
Cleat Development in Coals of the Upper Cretaceous Mesaverde Formation, Pilot Butte Area, Wind River Reservation, Wyoming
Ronald C. Johnson, Arthur C. Clark, Richard J. Szmajter
Wyoming Geological Association
..., or primary cleat systems, and butt, or secondary cleat systems. The two systems are usually orthogonal, or nearly orthogonal, with the shorter, more...
1993
Paleomagnetism of Franciscan Rocks in the Marin Headlands
Foster B. Curry, Allan Cox, David C. Engebretson
Pacific Section SEPM
... Marin Headlands chert sample. The plots show orthogonal projections of the magnetization vectors into the horizontal plane (circles) and the east...
1984
Anisotropic properties in the sedimentary and granite rocks at the Utah FORGE geothermal site revealed by shear-wave splitting of 3-component borehole microseismic data
Yingping Li, David Li, Lianjie Huang, Yingcai Zheng, Philip Wannamaker, Joseph Moore
International Meeting for Applied Geoscience and Energy (IMAGE)
... and two horizontal components of H1 and H2 that are orthogonal to each other with arbitrary orientations of geophones at each depth level. We can pick...
2022