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The AAPG/Datapages Combined Publications Database

Showing 552 Results. Searched 200,663 documents.

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Bayesian geophysical inversion with Gaussian process machine learning and trans-D Markov chain Monte Carlo

Anandaroop Ray, David Myer

Petroleum Exploration Society of Australia (PESA)

... the physics for which would require many pixels. Further, we demand that the data coverage and noise levels should determine the complexity of the model...

2019

Nanoparticle-Encapsulated Acids for Stimulation of Calcite-Rich Shales

Robin Singh, Songyang Tong, Krishna Panthi, Kishore Mohanty

Unconventional Resources Technology Conference (URTEC)

... 1564 pixels. Shale Fracture Conductivity The objective of this experiment was to quantify the change in fracture conductivity due to acid-induced surface...

2018

Pore-Scale Simulation of Pre-Darcy Flow and Boundary-Layer Effects in Low-Permeability Porous Media Using the Lattice Boltzmann Method

Quanyu Pan, Linsong Cheng, Pin Jia, Renyi Cao, Yongchao Xue, Hassan Dehghanpour

Unconventional Resources Technology Conference (URTEC)

... model image has a resolution of 400× 400 pixels, with one pixel corresponding to 100 nm, yielding a physical domain of 40 µ × 40 µ (as shown...

2025

An Integrated Cathodoluminescence Video-Capture Microsampling System: RESEARCH METHODS PAPERS

Bruce W. Fouke , John Rakovan

Journal of Sedimentary Research (SEPM)

...) 494(W) pixels, allowing direct production of publication-quality color and black-and-white photographic enlargements up to 8 cm in diameter from...

2001

How to Overcome Imaging Problems Associated with Carbonate Minerals on Sem-Based Cathodoluminescence Systems: RESEARCH METHODS PAPERS

Robert M. Reed, Kitty L. Milliken

Journal of Sedimentary Research (SEPM)

... and the next). The idea is that the pause between pixels will overcome the persistence problem and allow panchromatic imaging. Interpixel delays of as much...

2003

Lithofacies and Pore-Structure Characterization of the Mid-Continent Mississippian Limestone, Grant County, Oklahoma; #80627 (2018)

Fnu Suriamin, Matthew J. Pranter

Search and Discovery.com

... partitioned by assigning pore phase to all pixels containing blue color tones that represent impregated blue epoxy. To enhance this process, ESEM...

2018

Tracking authigenic mineral cements in fossil bones from the Upper Cretaceous (Campanian) Two Medicine and Judith River formations, Montana

Raymond R. Rogers, Anik K. Regan, Lucas N. Weaver, Jeffrey T. Thole, Henry C. Fricke

PALAIOS

... as a series of high-resolution images (2048 3 2048 pixels) and montaged in Adobe Photoshop, where they were adjusted using the curves tool to increase...

2020

Fracture-enhanced Porosity and Permeability Trends in the Bakken Formation, Williston Basin, Western North Dakota

Wayne B. Freisatz

Williston Basin Symposium

..., the Landsat interpreter draws a line to represent the linear arrangement of like pixels in the image. This process may be quite subjective...

1995

Analyzing Dune Foreset Cyclicity In Outcrop With Photogrammetry

Derek A. Hayes, Eric R. Timmer, Jared L. Deutsch, Michael J. Ranger, Murray K. Gingras

Journal of Sedimentary Research (SEPM)

... and Szeliski 2002; Seitz et al. 2006). Since all pixels are used in this step, the resulting output is capable of showing fine details of the outcrop...

2017

Increasing The Resolution of Seismic Imaging With Spectral Blueing, Spectral Decomposition RGB And HSV Blending to Delineate The Fluvial Facies on Fluvio Deltaic Environment

Aji Darma Maulana, Nine Safira, Ongki Ari Prayoga, Egie Wijaksono, Alit Ascaria

Indonesian Petroleum Association

... (volumetric pixels) at coordinates x, y, z in each input image. Together with intensity and saturation, the three images will contribute to C_out (x,y,z...

2022

Raman Microscopy Analysis of Wyoming CarbonSAFE Pilot Well Thin Sections for Mineralogy and Organic Matter Characterization

Grant A. Myers, Trevor Brown, Shavinka Fernando, Erin Phillips, Fred McLaughlin

Unconventional Resources Technology Conference (URTEC)

... reflectance ranges. The map pixels with low amounts of organic matter and lack-of-fit to the two-peak NIPF model greater than 10% are colored black...

2021

Deep Learning Models for Methane Emissions Identification and Quantification

Ismot Jahan, Mohamed Mehana, Bulbul Ahmmed, Javier E. Santos, Dan O’Malley, Hari Viswanathan

Unconventional Resources Technology Conference (URTEC)

... dimension is 128*128 pixels, and only one channel represents a value of retrieved CH4 enhancement from the log-transformed images. The model has 5...

2023

Structural analysis using 3D digital outcrop model: A case study in Kebun 500 outcrop, Kedah, Peninsular Malaysia

Tan Yan Eng, Choong Chee Meng, Nur Huda M Jamin, Muhammad Aslam Md Yusof

Geological Society of Malaysia (GSM)

... positioning systems to precisely geo-reference the images taken. Each digital photograph has 4000 × 3000 pixels and was taken at slightly different angles from...

2024

Application of Machine Learning Methods to Assess Progressive Cavity Pumps (PCPs) Performance in Coal Seam Gas (CSG) Wells

Fahd Saghir, M. E. Gonzalez Perdomo, Peter Behrenbruch

Australian Petroleum Production & Exploration Association (APPEA) Journal

... of 48 Â 48 Â 3 (6912 pixels). With the CAE, we reduce the dimensionality of the image to latent space, which helps to improve the model training time...

2020

Taphonomic analysis of the paleoentomofauna assemblage from the Cenozoic of the Fonseca Basin, Southeastern Brazil

Francisco Irineudo Bezerra, Enzo Victorino Hernandez Agressot, Monica M. Solorzano-Kraemer, Paulo Tarso C. Freire, Alexandre Rocha Paschoal, Joao Herminio Da Silva, Marcio Mendes

PALAIOS

... dispersive Xray spectroscopy (EDS). Images were acquired at a beam acceleration voltage of 20 kV, using a resolution of 1024 3 884 pixels per image...

2021

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

.... A schematic diagram of a hyperspectral data cube, where x and y represent the spatial coordinates of the pixels of the digital image and λ represents...

2017

Chapter 3: Nanoscale Imaging of Organic Matter and Wettability of Oil-Window Shales

Andrew Fogden, Terri Olson, Andrew G. Christy

AAPG Special Volumes

... voltage, with 7.5 μm aperture, and a working distance of 2 mm. Micrographs (2048 × 1536 pixels) were acquired at × 10k magnification to provide...

2016

Annually Laminated Sequences in the Internal Structure of Some Belgian Stalagmites--Importance for Paleoclimatology

Dominique Genty , Yves Quinif

Journal of Sedimentary Research (SEPM)

... on a vertical polished section. Three images, 512 pixels high, were needed to construct God-stm5 profile, and four images were needed to construct God-stm10...

1996

Experimental Test of Tectonic Controls on Three-Dimensional Alluvial Facies Architecture

Thomas A. Hickson, Ben A. Sheets, Chris Paola, Michael Kelberer

Journal of Sedimentary Research (SEPM)

... to each stage of the experiment at that downstream position. These sub-images were then broken down into vertical swaths 200 pixels (20 cm) wide...

2005

The Influence of Fault Permeability on Single-Phase Fluid Flow Near Fault-Sand Intersections: Results from Steady-State High-Resolution Models of Pressure-Driven Fluid Flow

Stephan K. Matthai , Stephen G. Roberts

AAPG Bulletin

... into a regular grid of pixels for display. In the finite-element model these boundaries are smooth. The smallest squares, seen as steps in the pixel images...

1996

Physical Oceanographic Influences On Sedimentology of Reef Sand Aprons: Holocene of Aranuka Atoll (Kiribati), Equatorial Pacific

Hannah N. Wasserman,, Eugene C. Rankey

Journal of Sedimentary Research (SEPM)

... and context for samples. The location of each observation point was marked with a hand-held GPS (positional error estimated at less than two pixels...

2014

The Extent and Patterns of Sediment Filling of Accommodation Space On Great Bahama Bank

Sam J. Purkis, Paul M. Mitch Harris

Journal of Sedimentary Research (SEPM)

...) pixel in the facies map. These pixels were then iteratively visited, and for each, the straight-line distance to every coastline node was calculated (Fig...

2016

Biosignature Preservation Aided by Organic-Cation Interactions in Proterozoic Tidal Environments

Kelsey R. Moore, Theodore M. Present, Frank Pavia, John P. Grotzinger, Joseph Razzell Hollis, Sunanda Sharma, David Flannery, Tanja Bosak, Michael Tuite, Andrew H. Knoll, Kenneth Williford

PALAIOS

... 3 1024 pixels with 3 frames, 25 ls dwell time, and between 1.5k3 and 3k3 magnification. Multiple phases within each ROI were also analyzed using single...

2022

Integrated Study of Ancient Delta-Front Deposits, Using Outcrop, Ground-Penetrating Radar, and Three-Dimensional Photorealistic Data: Cretaceous Panther Tongue Sandstone, Utah, U.S.A.

Cornel Olariu, Janok P. Bhattacharya, Xueming Xu, Carlos L.V. Aiken, Xiaoxian Zeng, George A. Mcmechan

Special Publications of SEPM

.... In reflectorless mode has a range of 80 meters and 1 cm accuracy. Professional digital camera with a maximum resolution of 3040 X 2016 pixels. Different Nikon...

2005

Using Structure-From-Motion Photogrammetry to Recognize Lateral Versus Forward Accretion Bedforms in the Lower Cretaceous McMurray Formation, NE Alberta, Canada

Derek A. Hayes, Eric R. Timmer, Michael J. Ranger, Jeffrey L. Kavanaugh, Murray K. Gingras

CSPG Bulletin

... that output sparse point clouds based on feature points, and later on dense point clouds using the pixels of each image throughout the photograph dataset...

2018

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