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The AAPG/Datapages Combined Publications Database
Showing 551 Results. Searched 200,357 documents.
Thermal Effect Evaluation of Basic Sill on Rhythmite of Taciba Formation (Permian), South of Brazil, Using RGB Measurements on Non-Opaque Phytoclasts
Search and Discovery.com
N/A
Monitoring Of The Ground Surface Deformation Induced By Geothermal Production At Reykjanes, Iceland, Using Interferometric Analysis Of Synthetic Aperture Radar Images (Insar)
Search and Discovery.com
N/A
Cable-Free Freedom
Bob Heath
GEO ExPro Magazine
... cameras had fewer than half a million pixels. They seemed good at the time, but the latest models have twenty times more, and the improvement in image...
2007
Interactive Interpretation of 2D Seismic Data
Alistair Brown
Geological Society of Malaysia (GSM)
.... When a section is zoomed, pixels are interpolated to retain the smooth appearance of the data (Fig. 12). The irregularity of the track indicates...
1987
Investigating rock micro-structure of sandstones by pattern recognition on their X-ray images
Ankita Singh, Ryan Armstrong, Klaus Regenauer-Lieb, Peyman Mostaghimi
Petroleum Exploration Society of Australia (PESA)
.... Displacement vector describes the distance between two-pixels in the image for which GLCM should be calculated. For example, a displacement vector of ‘1...
2019
Hyperspectral Imaging: Geological and Petrophysical Applications to Reservoir Characterization
T. Kosanke, Jason Chen
Unconventional Resources Technology Conference (URTEC)
... infrared (LWIR) spectrometer, the first in the United States, contains a specialized lens to obtain data at a high resolution of 300-500 µm pixels...
2017
Advanced Joint Interpretation of Image Logs and Conventional Well Logs in Organic-Rich Mudrock Formations for Improved Formation Evaluation: Application to the Permian Basin
Andres Gonzalez, Sabyasachi Dash, Zoya Heidari
Unconventional Resources Technology Conference (URTEC)
... at each pixel of a particular depth, and N is the total number of pixels at that depth. Textural image-based rock-fabric-related features. Resistivity...
2020
Deep convolutional neural networks for generating grain-size logs from core photographs
Thomas T. Tran, Tobias H. D. Payenberg, Feng X. Jian, Scott Cole, and Ishtar Barranco
AAPG Bulletin
... intervals and saved at 300 pixels per inch. Since there are 110 m of core, there are 110 core photographs. A manually interpreted discrete grain-size log...
2022
Applications of Three-Dimensional Digital Mapping and Hyperspectral Imaging for Outcrop Characterization, #41394 (2014).
Kivanc Biber, Shuhab D. Khan, Janok P. Bhattacharya, Craig L. Glennie, Mark D. Barton
Search and Discovery.com
... surface Spatial pixels Two ground-based hyperspectral sensors were used to image the Morrison Formation outcropping near Hanksville, UT. Preliminary...
2014
Experimental and Mechanism Study of CO2 and Bakken Oil Interactions at Equilibrium and Non-Equilibrium Conditions
Yuhao Yang, Qinwen Fu, Xiaoli Li, Jyun-Syung Tsau, Reza Barati, Shahin Negahban
Unconventional Resources Technology Conference (URTEC)
... into the multiple mechanisms controlling CO2 enhanced oil recovery processes. In this work, a high pressure high temperature full visual Pressure-Volume...
2019
Permeability field imaging: Mapping the geocritical crust’s permeability field
P. A. Geiser, P. E. Malin, S. E. Boyer, and J. R. Geiser
AAPG Bulletin
..., the PFI signals are typically mapped on to a volume consisting of a 3-D grid of voxels—3-D pixels expressed as cubes whose minimum size is set...
2023
Quantifying Roundness of Detrital Minerals By Image Analysis: Sediment Transport, Shape Effects, and Provenance Implications
Alberto Resentini, Sergio AndÒ, Eduardo Garzanti
Journal of Sedimentary Research (SEPM)
...: Sedimentary Geology, v. 336, p. 14–25. Wadell, H., 1932, Volume, shape, and roundness of rock particles: The Journal of Geology, v. 40, p. 443–451...
2018
Machine-Learning-Assisted Segmentation of FIB-SEM Images with Artifacts for Improved of Pore Space Characterization of Tight Reservoir Rocks
Andrey Kazak, Kirill Simonov, Victor Kulikov
Unconventional Resources Technology Conference (URTEC)
... segmentation as a process of partitioning a digital image into multiple segments and assigning a label to every pixel in an image such that pixels...
2020
Evaluation of the compositional changes during flooding of reactive fluids using scanning electron microscopy, nano-secondary ion mass spectrometry, x-ray diffraction, and whole-rock geochemistry
Udo Zimmermann, Merete Vadla Madland, Anders Nermoen, Tania Hildebrand-Habel, Silvana A. R. Bertolino, Aksel Hiorth, Reidar I. Korsnes, Jean-Nicolas Audinot, and Patrick Grysan
AAPG Bulletin
... with distilled water in a vacuum vessel. The pore volume (PV) was obtained by the weight difference between the saturated and dry core sample...
2015
Particle Shape in Simulants of the Lunar Regolith
Doug Rickman, Christopher Immer, Philip Metzger, Emily Dixon, Matthew Pendleton, Jennifer Edmunson
Journal of Sedimentary Research (SEPM)
... found the same statistical features are obtained each time. The resulting images from the FPA are measured in units of “pixels,” and a conversion...
2012
Fractal and Shape Analyses of Manganese Dendrites on Vein Quartz
T. F. Ng, G. H. Teh
Geological Society of Malaysia (GSM)
... photographs or images of dendrites. The images were taken in the field using a digital single lens reflex camera (DSLR) with resolution of 4288 x 2848 pixels...
2009
3-Dimensional Digital Outcrop Data Collection and Analysis Using Eye-safe Laser (LIDAR) Technology, J. Bellian, D. Jennette, C. Kerans, J. Gibeaut, J. Andrews, B. Yssldyk, D. Larue Search and Discovery Article #20009 (2002)
Search and Discovery.com
2002
Monitoring Leaks at Oil and Gas Facilities Using the Same Sensor on Aircraft and Satellite Platforms
Ángel E. Esparza, Jean-François Gauthier
Unconventional Resources Technology Conference (URTEC)
... for over 200,000 pixels in each image. Airborne Variant (AV) instrument The sensor developed for the airborne variant follows the same principles...
2021
Black Shale Diagenesis: Insights from Integrated High-Definition Analyses of Post-Mature Marcellus Formation Rocks, Northeastern Pennsylvania; #110150 (2011)
C. D. Laughrey, T. E. Ruble, H. Lemmens, J. Kostelnik, A. R. Butcher, G. Walker, and W. Knowles
Search and Discovery.com
... that pyrobitumen comprises a significant volume of the rocks. Most porosity in the Marcellus is associated with this graphitic pyrobitumen. Copyright © AAPG...
2011
Coal Fracturing through Liquid Nitrogen Treatment: A Micro-Computed Tomography Study
Hamed Akhondzadeh, Alireza Keshavarz, Faisal Ur Rahman Awan, Ahmed Z. Al-Yaseri, Stefan Iglauer, Maxim Lebedev
Australian Petroleum Production & Exploration Association (APPEA) Journal
... to 696 times its volume. Moreover, in water-bearing coals, the freezing of water provides another source of energy to fracture the rock (Qin et al...
2020
Deriving Elastic and Petrophysical Properties From Small Sample Volumes Using Digital Rock Analysis
Vegar Ravlo, Pål-Eric Øren, Cathrine Ringstad
Unconventional Resources Technology Conference (URTEC)
...-correlated properties through sub-volume calculations. The concept of a common rock model, where multi-disciplinary properties are calculated on the same model...
2022
Locating massive syneresis fractures in shale: An experimental study
X. Wang, L. Pan, L. Li, H. C. Lau, M. Zhang, H. Wang, and N. Cai
AAPG Bulletin
... (e.g., Pratt, 1998; Shields, 2002); (4) microbial processes, including biostabilization, biogas disruption, and volume change caused by organic decay...
2024
Visualizing Fracture-Matrix Fluid Exchange in Unconventional Tight Mudstone
John J. Valenza, Johnathan Moore, Sean Sanguinito, Dustin Crandall
Unconventional Resources Technology Conference (URTEC)
... with a micromeritics Autopore IV 9500. The mercury intrusion volume was logged at 205 pressures in the range 0.5 – 60000 psi. The Washburn equation...
2022
A new technique for assessing tubificid burrowing activities, and recognition of biogenic grading formed by these oligochaetes
Lynn T. Dafoe, Amanda L. Rygh, Byongcheon Yang, Murray K. Gingras, S. George Pemberton
PALAIOS
..., and using a known pixel length, the program calculates the traced area, which is converted to volume of upturned sediment by assuming an idealized conical...
2011
Development of a High-Resolution Geological Framework Model for the Edwards Aquifer Recharge Zone: Data, Assumptions, Procedures, and Workflow
Deborah J. Waiting, David A. Ferrill, Darrell W. Sims
Bulletin of South Texas Geological Society
... throughout the model volume. Selecting Software Geographic Information System (GIS) software is appropriate for the construction, management...
2003