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The AAPG/Datapages Combined Publications Database
Showing 42,250 Results. Searched 195,354 documents.
Identifying and Fixing Artifacts that Arise in Structure-Oriented Filtering; #42479 (2019)
Satinder Chopra, Kurt Marfurt
Search and Discovery.com
... structure-oriented filter, rather than improving the results of relative acoustic impedance, artifacts in the form of vertical striations appear...
2019
A brief description of the Andromeda Zn-Cu prospect in the Albany-Fraser Orogenic belt: A geophysical discovery using HT SQUID
Paul Polito, Tony Crawford, Tim Worthington, Mike Whitford, Somealy Sheppard
Petroleum Exploration Society of Australia (PESA)
... wide, Figure 1. The position of the Andromeda conductor relative to the structural ellipse and the MLEM survey stations. REGIONAL GEOLOGY The AFO...
2019
Classification of Geological Samples by Discriminant-Function Analysis
J. E. Klovan,, G. K. Billings
CSPG Bulletin
... a contour value describing the density of items enclosed within it. The inner ellipse in the limestone group, for example, defines an area within...
1967
Seismic Characterisation of Unconventional Plays in North America
Lee Bell, Mary Edrich, Alvaro Chaveste
Petroleum Exploration Society of Australia (PESA)
... important characteristic is 'fractu rability' or development The area l coverage and data information, and can highlight su bt le cha nges how easily...
2012
Normal Moveout and Dip Moveout, C. L. Liner, #40037
Search and Discovery.com
N/A
Chapter 27: New Evidences of an Active Strike-slip Fault System in Northern Venezuela, near Offshore Perla Field
Laszlo Benkovics, Albert Asensio
AAPG Special Volumes
... of the overriding Caribbean and stable South American plates, an area characterized by a unique geologic setting. A recent three-dimensional (3-D) survey (ca 700...
2015
Three-Dimensional Geologic Block Modeling Of The Kutcho Creek Massive Sulfide Deposit, British Columbia: Chapter 15
David E. Hamilton, Robert S. Didur
AAPG Special Volumes
... discounted based on the cell-hole orientation relative to the weighting ellipse. In this way, the directional bias noted by the geologist was incor...
1992
RETRODEFORMATION OF CARBONIFEROUS TRACE FOSSILS FROM THE NARRAGANSETT BASIN, UNITED STATES, USING RAINDROP IMPRINTS AND BEDDING-CLEAVAGE INTERSECTION LINEATION AS STRAIN MARKERS
MEREDITH E. FICHMAN, JEAN M. CRESPI, PATRICK R. GETTY, ANDREW M. BUSH
PALAIOS
... 1966; Tan 1973). These fossil-based methods compute strain ellipses, two-dimensional representations of relative changes in length in a plane, based...
2015
Considerations in Azimuthal Processing and Velocity Inversion for Unconventional Plays
Michael J. Perz, William Keller, Victor Kriechbaum
Unconventional Resources Technology Conference (URTEC)
... implies that VVAZ inversion holds great promise for optimizing future production in the area, and moreover serves as implicit validation of the processing...
2018
Regional and Local Fractures of the Bakken Petroleum System, Williston Basin: Integrating Field Studies and 3-D Seismic Analysis
Stephen J. Angster, J. Frederick Sarg
AAPG Special Volumes
...-lateral wrench fault strain ellipse model is offered to explain these regional trends. Fracture orientations acquired from outcrop sites (Little Rocky...
2013
High Fidelity Directional Survey Calculations Can Improve Hydraulic Fracture Positioning In Unconventional Laterals
Bill Lesso, Tim Paton
Unconventional Resources Technology Conference (URTEC)
... the scope of this paper. For the sake of argument, a default fracture can be described as an ellipse that is 600 ft high and 800 ft wide. It is fully...
2020
Quantitative Fabric Analysis of Drammen Clay Using X-ray Diffraction Technique
A. Kazi
Journal of Sedimentary Research (SEPM)
..., are proportional to the number of particles. Since, the relative intensity of X-ray diffraction from a given basal plane varies directly with the number...
1975
Deformation of organic matter and its effect on pores in mud rocks
Guochang Wang
AAPG Bulletin
... principle axis; c is the half length of the minimum principle axis; , and AR is the aspect ratio of ellipse . Assuming the surface area is constant during...
2020
Core Orientation from Non-Oriented Core: A Tutorial
D. C. Carter
Indonesian Petroleum Association
... of 3D-digitizer is used it is important that the relative orientation of the reference line is maintained during the measurement process. If several features...
2002
Structural Geology Observations Derived From Full Tensor Gravity Gradiometry Over Rift Systems, #41784 (2016).
Desmond FitzGerald, Horst Holstein
Search and Discovery.com
... component analysis problem • In this example, tensor is represented by an ellipse • Tensor is easiest described by Eigenvalues and Eigenaxis • Eigenaxis...
2016
Monitoring CO2 Injection at Weyburn Reservoir Using 3-D/3-C Seismic Datasets; #20290 (2015)
Le Gao, Igor Morozov
Search and Discovery.com
... of the three vintages of the dataset. Dashed green ellipse indicates the area of increased pore pressure. Figure 9. Differential attribute δP2...
2015
Well Locations and Mapping Considerations
F. Kenneth Aitken
Houston Geological Society Bulletin
...), but most data systems store locations in terms of absolute coordinates. Within a small, localized area, relative locations might be totally adequate...
1994
Use of the azimuthal resistivity technique for determination of regional azimuth of transmissivity
Douglas Carlson
Environmental Geosciences (DEG)
... regional-scale properties of these joint sets: azimuth of transmissivity ellipse, dominant set, and trend(s). The surface azimuthal electrical resistivity...
2010
Improvements in Graphical Representation of Fabric Data, Showing the Influence of Aspect Ratios of Grains on Their Orientations
Atsushi Yamaji, Fujio Masuda
Journal of Sedimentary Research (SEPM)
... by the attitude of the grains relative to surrounding water current but also by the shape of the grains (Jeffery 1922; Middleton and Southard 1977, p. 4.7; Allen...
2005
Application of the surface azimuthal electrical resistivity survey method to determine patterns of regional joint orientation in glacial tills
Douglas Carlson
Environmental Geosciences (DEG)
... array rotated about a fixed center point at selected degree intervals that yields an apparent resistivity ellipse. From this ellipse, joint set...
2010
Rapid Estimations of Dynamic Hydraulic Fracture Fronts from Cross-Well Low-Frequency Distributed Acoustic Sensing Strain-Rate Measurements
Smith Leggett, Erich Kerr, Ding Zhu, Dan Hill
Unconventional Resources Technology Conference (URTEC)
.... The major and minor axes of the ellipse, 2a and 2b, are referred to as fracture length and height in this work. xw and yw are the lateral and vertical...
2022
An Overview of Ray Trace Modeling with an Example from the Wichita Mountain Front in Southern Oklahoma
Jan Dodson, Roger A. Young, Kevin Smart
Oklahoma City Geological Society
... are shown by dashed lines. Figure 14. Variable area display of SEGY file for fault reflection on top. Amplitudes other than the one in the ellipse...
2001
Using Multiazimuth Seismic Data for Anisotropy Estimation in an Unconventional Reservoir
Surabhi Mishra
Petroleum Exploration Society of Australia (PESA)
... are the key attributes that seismic can help predict. Seismic Velocity and Amplitude variations with azimuth can be used to predict fracture strike, relative...
2018
Identifying Re-Stimulation Effectiveness by Utilizing Microseismic Attributes
M. Preiksaitis, A. Baig, S. Bowman-Young, T. Urbancic
Unconventional Resources Technology Conference (URTEC)
...rac, could indicate an area of rock with new fracture development missed during the initial completion. The center ellipse associated with two mid-late...
2016
Three-Dimensional Shape Analysis of Fine-Grained Sediments
Alan E. Wright
Journal of Sedimentary Research (SEPM)
... of the photograph relative to the slide and calculating the glancing angle for that position, the angle being assumed constant over the area of one photograph...
1957