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The AAPG/Datapages Combined Publications Database
Showing 28,577 Results. Searched 200,673 documents.
A Modified Dip-Direction Indicator
G. B. Morey
Journal of Sedimentary Research (SEPM)
... dip in cross-bedded strata. Other devices have been suggested (e.g., Pryor, 1958; Berry, 1960) to aid in obtaining accurate data, but I believe...
1974
Advanced Particle Shape Analysis in Conglomerate Reservoir From Borehole Resistivity Image, #42172 (2018).
Shiduo Yang, Weidong Huang, Chaofeng Chen, Isabelle Le Nir, Junyi Yuan, Shenzhuan Li, Heike Delius, Krishna Pokhriya
Search and Discovery.com
... to have been deposited at the base of a channel or a surface with horizontal or lower angle. Structural dip removal should be applied...
2018
Reservoir Heterogeneities of Some Cretaceous Sandstones
Charles F. Dodge , Dennis P. Holler , Robert L. Meyer
AAPG Bulletin
..., a bedding plane marked, and the cross-bedding dip direction azimuth and dip angle were measured. Approximately 20 percent of the samples was marked...
1971
Using Volumetric Calculators for Better Accuracy; #41757 (2016)
Lennon Infante Paez, Kurt J. Marfurt
Search and Discovery.com
... routinely use horizon slices and stratal (or proportional) slices to interpret seismic attributes. While some attributes such as dip magnitude and dip...
2016
Abstract: Automation of Dip Picking New Approaches to Dip Evaluation and Interpretation;
Isabelle Le Nir, Josselin Kherroubi, Carlos Maeso, Nicolas Veron
Search and Discovery.com
...Abstract: Automation of Dip Picking New Approaches to Dip Evaluation and Interpretation; Isabelle Le Nir, Josselin Kherroubi, Carlos Maeso, Nicolas...
Unknown
Estimating CO2 Saturation in Subsurface Geologic Reservoirs Using Pre-stack Seismic Attributes and Machine Learning
Papa Owusu, Rui Zhang
Carbon Capture, Utilization and Storage (CCUS)
... pre-stack Amplitude-vs-Angle (AVA) attributes with machine-learning techniques to estimate CO2 saturation in the lower Tuscaloosa formation, Cranfield...
2025
Abstract: Geological Microseismic Fracture Mapping Methodologies for Improved Interpretations Based on Seismology and Geologic Context; #90171 (2013)
S. C. Williams-Stroud and Leo Eisner
Search and Discovery.com
... interpretation of results can be done. The most common approach is to look for trends, or directions, along which microseismic events line up that would indicate...
2013
How to Subdivide Fluvial Deposits Into a Sequence Stratigraphic Framework Using Borehole Images (Echo-Yodel Field SW Shelf Australia Case Study)
Adriaan A. Bal
Indonesian Petroleum Association
... Cumulative dip-azimuth vector plots are constructed by sequentially mapping each cross-bed (i.e. foreset) azimuth from the base through of the study interval...
2008
ABSTRACT: Diapir Geometry as a Control Upon Drag Zone Profile and Deformation Style, by John P. Brown, Ian Davison, Ian G. Alsop, and Martin R. Gibling; #91019 (1996)
Search and Discovery.com
1996
Abstract: TTI Anisotropic Depth Migration: Which Tilt Estimate Should We Use?; #90211 (2015)
Francois Audebert and Volker Dirks
Search and Discovery.com
... with the dip of the structure, great simplifications arise in the decoupling of the anisotropy parameters. In particular, positioning and short spread...
2015
Enhanced Wellbore Placement Accuracy Using Geomagnetic In-Field Referencing and Multi-Station Correction
Stefan Maus, Matthew Herzl, Shawn DeVerse
Unconventional Resources Technology Conference (URTEC)
... by the differences in the magnetic reference field at these two locations. In the Eagle Ford case, the dip angle was 57.6° and the declination was 4.4...
2015
P-S Converted Wave AVO Analysis for Reservoir Characterization
Ehsan Sadeghi, Cepi Adam, Effendy Siawira, Hilfan Khairy
Indonesian Petroleum Association
..., in a classical P-P AVO approach, we would have needed higher registered angle stacks (Ultra-Far angle) in order to capture the fluid effect; whereas we...
2017
High-resolution Electrical Borehole Images While Drilling
Jeremy Lofts, Stephen Morris
AAPG Special Volumes
... image facies regions where dip patterns indicate low-angle surfaces.IFA4 (sandstone, cross-laminated): A distinct category of sandstones comprising...
2010
Evaluation of General Resistivity Density-Based Saturation in Thin, Laminated Sand-Shale Sequences, #41042 (2012)
John Quirein, Burkay Donderici, David Torres, Eric Murphy, Jim Witkowsky
Search and Discovery.com
... placement tools are used to evaluate anisotropy of formations; however, they have a limitation on the minimum dip angle that they can operate...
2012
Easy Solutions to Stereonet Rotation Problems: GEOLOGIC NOTES
C. A. Bengtson
AAPG Bulletin
... of a quasi-vector, proportional in length to the tangent of half of the angle of dip. Half-tangent procedures provide easily visualized techniques for rotating...
1983
The Global Offset Seismic Approach: Improving Seismic Imaging In Complex Geological Settings
Paolo Dell'Aversana
Petroleum Exploration Society of Australia (PESA)
...The Global Offset Seismic Approach: Improving Seismic Imaging In Complex Geological Settings Paolo Dell'Aversana I TECHNICAL Focus The Global...
2004
Structural Problems Pertaining to Petroleum Exploration in Wyoming
D. L. Blackstone Jr.
Tulsa Geological Society
... thrusts are of low angle, but do not approach the near horizontality of the Bannock thrust sheet to the west. The problem of fault-plane attitude...
1954
Slope stability assessment in opencast quarry - An UAV approach
Nur Emilia Qistina Mohd Anua, Hareyani Zabidi, Aisyah Shahirah Juhari, Solihin Yaacob, Syaran Suri
Geological Society of Malaysia (GSM)
...Slope stability assessment in opencast quarry - An UAV approach Nur Emilia Qistina Mohd Anua, Hareyani Zabidi, Aisyah Shahirah Juhari, Solihin Yaacob...
2018
Dip Determination in Carbonate Cores
R. M. Hedberg
Journal of Sedimentary Research (SEPM)
... and apparent dip, but to determine the angle of true dip two sections must be cut at a known angle to each other and the inclination of the bedding plane...
1963
Multiple Dip Protractor: GEOLOGICAL NOTES
Mariano M. Melendres, Jr.
AAPG Bulletin
... and Measurement of Exaggerated Cross-Sections," Econ. Geology, Vol. 25, pp. 827-31. End_of_Article - Last_Page 2195------------ The multiple dip protractor...
1953
Control Methods in Subsurface Map Construction
J. T. C. Hay
AAPG Bulletin
... dip the overlay technique also should be used. PRINCIPLES OF CROSS-SECTION CONTROL IN MAP CONSTRUCTION Maps are two-dimensional representations...
1973
Relations Between Cross-Bedding, Bedforms, and Flow
David M. Rubin
Special Publications of SEPM
... twodimensional bedforms are readily recognizable because their cross-beds dip toward the same direction (dispersion of dip directions is low), dispersion...
1987
Effective Permeability in Tidal Heterolithic Cross-Bedded Sandstones; #50855 (2013)
Benoît Y.G. Massart, Matthew D. Jackson, Gary J. Hampson, Berit Legler, Howard D. Johnson, Christopher A.-L. Jackson, Rodmar Ravnas, and Marcus Sarginson
Search and Discovery.com
... Toeset dip angle Foreset thickness Foreset : toeset ratio Angle of dune climb Mud patch size Style of cross-bedding Gecko Nose generic model 2-12...
2013
The Application of a Linear Increase of Velocity with Depth to Seismic Dip Migration
J. E. Stones
Oklahoma City Geological Society
... be computed. This is done by evaluating the formulas: where A = the emergence angle of the wave-front B = the dip angle of the reflection DT = Delta...
1958
Abstract: Fracture Evolution on Fold Limbs: Interplay between Bed-parallel Extension and Shear; #90172 (2014)
William Jamison, Steve Jolley
Search and Discovery.com
... for the prediction of fractures on folds place much emphasis on the fold hinges and the curvature approach. However, planar fold limbs can also display...
2014