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The AAPG/Datapages Combined Publications Database
Showing 43,769 Results. Searched 200,357 documents.
Extensional Structures Along the Allegheny Front in Virginia and West Virginia Near the Giles County Seismic Zone
Andrew L. Mehlhop, John M. Dennison, Kevin G. Stewart
Appalachian Geological Society
... neotectonic features, however, have been centered around the Giles County, Virginia area (Law and others, 1994; McDowell and Schultz, 1990; Wheeler...
1996
Better Than a Porosity Cutoff: The Rock-Fabric Approach to Understanding Porosity and Permeability in the Lower Clear Fork and Wichita Reservoirs, Fullerton Field, West Texas
Rebecca H. Jones, F. Jerry Lucia, Stephen C. Ruppel, Jeffrey A. Kane
West Texas Geological Society
... for permeability variation in the mixed limestone and dolostone reservoir at Fullerton Field, we employed the rock-fabric approach in an initial study area...
2003
Affinity of Lucianorhabdus and Species of Tetralithus in Late Cretaceous Gulf Coast Samples
Frank H. Wind
GCAGS Transactions
.... The author reported that four large elements form the central area of the basal shield, leaving a rhombic opening at the center. The central process...
1975
Surface Seismic Monitoring of Hydraulic Fracturing Activity in Pennsylvania and West Virginia
Abhash Kumar, Erich Zorn, Richard Hammack, William Harbert
Unconventional Resources Technology Conference (URTEC)
... and location of the majority of the impulsive events does not favor any causal relationship with the hydraulic fracturing in the study area...
2016
Kinematic, Chemical, and Petrological Development of Protomylonite Within the Scove Canyon Segment of the Cuyamaca-Laguna Mountains Shear Zone, Peninsular Ranges, Southern California
Shane M. Howell, Corrin S. Gallarano, Gary H. Girty
Pacific Section SEPM
... of the Scove Canyon segment, a small area of the shear zone underlain entirely by the -118 Ma Pine Valley granodiorite was mapped and sampled for thin...
1997
Prediction of Sanding Prone Zones around Wellbore: An Approximate Analytical Solution and Numerical Verification
Yanhui Han, Xu Wang, Shengli Chen
Unconventional Resources Technology Conference (URTEC)
... on the relative magnitudes of the two confining stresses, wellbore pressure, and formation strength properties, such as the cohesion and friction angle...
2025
Geostatistical Methods
Mike Shepherd
AAPG Special Volumes
... can be readily measured.The relative abundance of the various lithofacies within a reservoir interval will vary both vertically and areally. Vertical...
2009
A Fundamental Structural Pattern in Disposition of Mineral and Energy Resources
E. S. T. O'Driscoll
AAPG Special Volumes
... these, in 1970, W. Johnson and R. Horwitz compiled regional magnetic plots of the area, which clearly revealed the association between major ore deposits...
1981
State of the Art Logging Selection to Explore Tight, Low Contrast, Hidden Reservoirs
Anton Setyo Kristanto,Tino Diharja, Rinaldi Sudarwoto, Hengky Ng, Leonora Ludwina Lilasari, Defri W. Widiyanto, Rio Putra
Indonesian Petroleum Association
... area packer of advanced WFT was deployed to measure formation pressures, determine fluid types and contacts, and obtain fluid samples in low...
2018
Three-dimensional modeling of clinoforms in shallow-marine reservoirs: Part 1. Concepts and application
Gavin H. Graham, Matthew D. Jackson, and Gary J. Hampson
AAPG Bulletin
... of the top ellipse relative to the clinoform origin is calculated using and the radius of the base ellipse using To specify highly lobate...
2015
Application of the Analytical Hierarchy Process (AHP) to Determine Gas Allocation Under Shortage Condition
Arie Wisianto, A. Andriansyah
Indonesian Petroleum Association
... in the working area of Western Java Region, also acts as an operator of gas business activity in Western Java Region. The function of Gas Transmission...
2007
The influence of benthic diatoms on the textures of carbonate-coated grains from a fluvial tufa spring in northern California
Hannah P. Boelts, Yadira Ibarra, Clive Hayzelden
Journal of Sedimentary Research (SEPM)
...) of a best-fit ellipse for each pore was quantified using the ImageJ software. The percent porosity was determined by dividing the total pore area (μm2...
2020
Effect of Salt Domes on Accumulation of Petroleum
Donald C. Barton
AAPG Bulletin
... dip in the Gulf Coast ranges from 75 to 200 feet per mile. The "upthrust" of the salt core has domed the sediments quaquaversally in an area extending...
1931
The Impact of Pore Geometry and Microporosity on Velocity-Porosity Relationship in Carbonates of Central Luconia, Sarawak; #41030 (2012)
Nor Sara Izzatti Bashah and Bernard Pierson
Search and Discovery.com
...: dominant size (DOMsize), perimeter over area (PoA), gamma (γ), and aspect ratio (AR). PoA and DOMsize, in words, tortuosity of the pore system and the pore...
2012
The Three Elements of Structural Geology Part 5, #41849 (2016).
Terry Engelder,
Search and Discovery.com
... in the vicinity of the concretion does. For this example we consider the shale at a remote location relative to the concretion. Shale matrix compacts around...
2016
Seamount Age Estimates from Paleomagnetism and Their Implications for the History of Volcanism on the Pacific Plate
William W. Sager
Circum Pacific Council Publications
... a of the underlying seafloor throughout this area, many of the seamounts between the western Pacific trenches and the Line Islands in the central Pacific...
1992
Effect of Anisotropy on Apparent Resistivity Curves
Sylvain J. Pirson
AAPG Bulletin
...: 970 ohm feet From the preceding results, one should not generalize that the large axis of the anisotropy ellipse will always be in the stratification...
1935
Physical Processes in the Ocean: Part 2: Relation of Oceanography to Sedimentation: PART 2
R. H. Fleming, Roger Revelle
AAPG Special Volumes
..., has a marked effect upon the physical conditions and the biological productivity. The types of sediments laid down in any area depend largely upon...
1939
Orbital Forcing and Sedimentary Sequences
Alfred G. Fischer, David J. Bottjer
Journal of Sedimentary Research (SEPM)
..., specifically the Earth's precession, the oscillation in its axial obliquity, and its orbital eccentricity relative to the orbital ellipse...
1991
Shape difference of mud clasts depending on depositional facies: application of newly modified elliptic Fourier analysis to hybrid event beds
Sojiro Fukuda, Hajime Naruse
Journal of Sedimentary Research (SEPM)
... Fourier descriptors (EFDs) as bellow: where Hn is nth harmonic ellipse (Fig. 1C) and takes following form: where is the maximum number of harmonic...
2020
Static connectivity of fluvial sandstones in a lower coastal-plain setting: An example from the Upper Cretaceous lower Williams Fork Formation, Piceance Basin, Colorado
Matthew J. Pranter, Nicholas K. Sommer
AAPG Bulletin
...), Coal Canyon, Colorado, with comparison to the Piceance Basin subsurface, Cretaceous sand body geometries in the Piceance Basin area of northwest...
2011
Quantifying Spacing Degradation in Northern Delaware Basin Using Machine Learning and Subsurface Properties
Charles Connell, Kyle LaMotta, Jizhou Li, Matt Mayer
Unconventional Resources Technology Conference (URTEC)
... of these ellipses varies depending on which cluster a well is in. The area of this ellipse is multiplied by the lateral length of the well to create...
2025
Persistent Microseismic Monitoring Using Robust Permanent SADAR Arrays
Kevin D. Hutchenson, Jason Jennings, Elige B. Grant, Derek Quigley, Jonathan Yelton, Paul A. Nyffenegger
Carbon Capture, Utilization and Storage (CCUS)
... for microseismic monitoring, measurement, and verification (MMV) of the area of review identified for geologic carbon storage (GCS) sites use networks...
2025
Structural Analysis of Sedimentary Basins: An outline of a 3-hour short course presented to the New Orleans Geological Society, April 29, 1981
Dr. John C. Crowell
New Orleans Geological Society
... caused by stress. Force: (External) compression, tension, couple, torsion. Stress: Internal force per unit area; a tensor quantity. Shear and normal...
1981
Understanding the depositional model of the Spraberry formation using facies inversion
Paritosh Bhatnagar, Venkatesh Anantharamu, Ron Bianco
International Meeting for Applied Geoscience and Energy (IMAGE)
... the location of the study area. Within the study area, the environment of deposition of the cored basal lower Spraberry has been characterized...
2023