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The AAPG/Datapages Combined Publications Database
Showing 7,658 Results. Searched 200,357 documents.
A "Limited" 3-D Experience in the D-J Basin, Weld County, Colorado
Cliff Clark, Tom Birmingham, Kevin Revels
Rocky Mountain Association of Geologists
.... An equally strict deadline for completion of t h e interpretation required that data acquisition be completed prior to harvesting of the crops in the area...
1995
Structural Restoration of Seismic and Geologic Sections in Extensional Regimes (1)
ALAN G. NUNNS
AAPG Bulletin
... within the present-day section as follows: (1) origin points are equally spaced along a reference horizon that corresponds to an original...
1991
Comparative Tests of Several Methods of Sampling Heavy Mineral Concentrates
George H. Otto
Journal of Sedimentary Research (SEPM)
... from relatively large amounts of material. In this device, the sand is emptied into a long narrow hopper and is divided equally, the material falling...
1933
Imaging the Internal Movements of Galveston Island and Bolivar Peninsula with Ground Penetrating Radar
Aubrey Hepler, Shuhab Khan, John B. Anderson
GCAGS Transactions
..., not all barrier islands are created equally. There are several theories that suggest barrier island growth and migration are a result of emerged...
2016
B
John G. Dennis
AAPG Special Volumes
... are not recommended. False bedding might equally refer to pseudo-bedding; inclined bedding to any initial dip. Cross-bedding, being a genetic term, should include all...
1967
3D Geomechanical Analysis of Refracturing of Horizontal Wells
Dharmendra Kumar, Ahmad Ghassemi
Unconventional Resources Technology Conference (URTEC)
... in the direction orthogonal to the initial preferred fracture propagation direction (i.e., perpendicular to the initial minimum principal stress direction...
2017
Chapter 13: Development Geology in Eolian Reservoirs
L. F. Krystinik
Rocky Mountain Section (SEPM)
... of reservoir uniformity. Equally as often, immediate 40-acre offsets to million-barrel wells may never pay out, due to “local variability”. In fact, many...
1990
Hyperspectral imaging as an aid for facies analysis in massive-appearing sediments: a case study from the middle McMurray Formation
Alina Shchepetkina, Michelle Speta, Murray K. Gingras, Benoit Rivard, S. George Pemberton
CSPG Bulletin
... L2a (sandstone-dominated IHS) and L2b (equally interbedded sandstone and mudstone IHS) likely occurred in the middle estuary instead of inner...
2017
Concave-Up Pelecypod (Psephidia) Shells in Shallow Marine Sand, Elk River Beds, Southwestern Oregon
H. Edward Clifton, Sam Boggs, Jr.
Journal of Sedimentary Research (SEPM)
... or gently inclined with respect to one another; broad, shallow channels filled with shells are fairly common. Organic burrows (commonly filled by shells...
1970
Porosity Log Crossplots
John H. Doveton
Special Publications of SEPM
... zones. So, for example, many of the Viola zones could equally be dolomitic limestones, cherty dolomites or cherty, dolomitic limestones. This problem...
1994
Seismic lineaments characterization using independent component analysis
Abdulmohsen AlAli, Yazeed Altowairqi, Constantinos Tsingas, Ali AlSultan
International Meeting for Applied Geoscience and Energy (IMAGE)
.... Accordingly, each ICA component is equally important and cannot be ranked. ICA is very useful in capturing local changes which is critical for our...
2022
Pebble Shape (and Size!): DISCUSSION
Douglas I. Benn, Colin K. Ballantyne
Journal of Sedimentary Research (SEPM)
... dimensions of the three orthogonal axes, long (a), intermediate (b) and short (c). Following Sneed and Folk (1958), he observed that clast shape is best...
1992
Significant Geologic Processes in Development of Fracture Porosity: GEOLOGIC NOTE
J. B. Currie
AAPG Bulletin
.... Stearns and Friedman viewed this second class of fracture po osity as comprising sets of orthogonal fractures related in origin to regional structural...
1977
Natural Fracture Systems: Description and Classification: GEOLOGIC NOTES
R. A. Nelson
AAPG Bulletin
... and/or strain directions, and with equally consistent and predictable senses of motion, during laboratory compression, extension, and tension tests...
1979
Extended Abstract: Uncertainity Analysis in The Sawan Static Reservoir Model and Optimization of Facies Using Neural Network Technology*; #90139 (2012)
Attique ur Rahman and Muhammad Ibrahim
Search and Discovery.com
... properties. In all these realizations each model is equally probable with given set of parameters. The space of uncertainty created by multiple realizations...
2012
Microseismic Monitoring Reveals Natural Fracture Networks, #40782 (2011)
Shoshana Goldstein, Margaret Seibel, Theodore Urbancic
Search and Discovery.com
... shear) failure, the solution for the strike and dip of the crack is non-unique with two orthogonal fracture planes that equally satisfy the waveform...
2011
The Structure and Stratigraphy of Erath Field
Joseph H. Hawkins
GCAGS Transactions
... quickly reveals this, as will the north-south cross-section). The axis of the apex is inclined at an angle of about eight (8) degrees from the vertical...
1958
Correlation of Reflection Seismograph Records in California
Henry Salvatori
AAPG Bulletin
... various points. Where, however, the section contains a great number of equally good reflecting strata, some of which change i character, and therefore...
1933
Geophysics
E. A. Eckhardt
AAPG Bulletin
.... Although realizing that the gravity picture is correlative with the subsurface distribution of rock densities, geologists are still inclined to take...
1940
Seismic Imaging Technology: Part I: Acquisition
Martin Landrø, Lasse Amundsen
GEO ExPro Magazine
... Geophysics, Trondheim, Norway. Beyond Processing Seismic imaging technology does not only involve traditional seismic data processing. Equally important...
2008
Problems of Fault Nomenclature: DISCUSSION
Donald H. Kupfer
AAPG Bulletin
... movement. In an area in which the stress pattern is known to have changed markedly or in which younger Fig. 1. True view (inclined cross section) of fault...
1960
Upper Cretaceous Trace Fossils, Book Cliffs of Utah: A Field Guide
Robert W. Frey, James D. Howard
Rocky Mountain Section (SEPM)
... are horizontal or gently inclined, and individual specimens are essentially constant in size. Different specimens range from 0.5 to 2 cm, and average about 1.2...
1985
Quantifying CretaceousCenozoic exhumation in the Otway Basin, southeastern Australia, using sonic transit time data: Implications for conventional and unconventional hydrocarbon prospectivity
David R. Tassone, Simon P. Holford, Ian R. Duddy, Paul F. Green, Richard R. Hillis
AAPG Bulletin
...). Seismic reflection profiles oriented approximately orthogonal to the northeast-southwest structural trend of the Colac trough reveal a prominent mid...
2014
Sand Movement Along Equilibrium Beaches North of San Francisco
John A. Cherry
Journal of Sedimentary Research (SEPM)
..., and the grains along equally-spaced lines traversing the slide were identified and counted. A minimum of 100 transparent grains (excluding biotite, chlorite...
1966
Characterization of a Sediment Core from Potential Gas-hydrate-bearing Reservoirs in the Sagavanirktok, Prince Creek, and Schrader Bluff Formations of Alaska's North Slope: Part 5Acoustic Velocity Core Studies
R. F. Sigal, C. Rai, C. Sondergeld, B. Spears, W. J. Ebanks Jr., W. D. Zogg, N. Emery, G. McCardle, R. Schweizer, W. G. McLeod, J. Van Eerde
AAPG Special Volumes
... velocities, Vs1 and Vs2, polarized in orthogonal directions were measured on each sample at each prescribed pressure and temperature setting...
2009