118 Works

Grain Packing

Mohammad Saadatfar
Partially crystallized packings of frictional, equal-sized spheres. A batch of approximately 200,000 beads is poured into a cylindrical container forming an initial packing in a random configuration with a volume fraction ranging from 57% to 63%. The packing is then shaken intensely for few seconds, to the point of fluidization, where a fast compaction is observed. The resulting global packing density reaches 70.5%.

Apatite grains

Richard Ketcham & Emily Cooperdock
X-ray CT scans of apatite crystals, for the purpose of supporting (U-Th)/He thermochronometry by measuring size, shape, and corrections for alpha particle ejection during radioactive decay.

Bentheimer Micro_CT with Waterflood

Thomas Ramstad & Anders Kristoffersen
Micro CT images of waerflooding in a Bentheimer outcrop. 120 kV with 7 microns resolution. Dry scan of the core before flooding Scan after water flooding (at Sor state)

Mudrock images from Nankai Trough

Abhishek Bihani, Hugh Daigle, Masa Prodanovic, Kitty Milliken & Javier E. Santos
An image analysis workflow was used to study the electron microscopy images of uncemented muds obtained at various depths (< 1.1 km burial) in the Kumano Basin of Nankai Trough offshore Japan for studying the silt bridging phenomenon. Forty-nine images from five core samples at different depths of Site C0002 obtained during Integrated Ocean Drilling Program (IODP) Expeditions 315 and 338 were used for the study. The original image set can be found at https://www.digitalrocksportal.org/projects/42....

Intergranular Pore Structures in Sandstones

Chul Moon & Matthew Andrew
Dataset: Sandstones (Bentheimer, Doddington, and Rotleigend) X-Ray Microscopy (XRM) is used to examine the intergranular pore structures in a series of sandstones. All three sandstone samples are imaged using a ZEISS Versa X-ray Microscope (XRM) (ZEISS X-Ray Microscopy, Pleasanton, CA). 3D volumes of the varying resolution are reconstructed from a series of 1600 projections, sequentially acquired at evenly spaced angular increments during a 360° rotation. Each projection consists of 1024 x 1024 pixels and is...

Residual CO2 trapping in oil-wet sandstone

Adriana Paluszny, Stefan Iglauer & Maxim Lebedev
MicroCT images of residual CO2 trapping in oil wet sandstone.

Surface structure of Ketton rock

Maja Rücker & Paul Luckham
The dataset contains the height map of the surface of Ketton rock obtained with atomic force microscopy, the corresponding 3D reconstruction and the results of a drainage simulation.

Capillary rise in vuggy porous media

Hasan J Khan, Masa Prodanovic, Ayaz Mehmani, David DiCarlo & Dayeed Khan
Capillary rise in vuggy porous media

Sessile Drop and Micro-CT Data for Six Sandstone Formations

Laura Dalton

Two-Fluid Micromodel Experiments

James McClure
An experimental microfluidic approach based upon image analysis of nitrogen displacing decane in a 500 μm × 500 μm × 1.5 μm micromodel experiment. The pressures on the boundary of the cell were changed and the system was observed as it dynamically relaxed to an equilibrium state. These images capture microscale equilibrium configurations that can be used to determine fluid saturations, interfacial areas, and curvatures.

Induced rough fracture in Berea sandstone core

Zuleima Karpyn, Christopher Landry & Masa Prodanovic
X-ray microtomography was used to map the internal structure of a rough fracture. The artificially created fracture was oriented parallel to the natural bedding of the rock.

X-ray micro-tomography datasets of mixed-wet carbonate reservoir rocks for in situ effective contact angle measurements

Amer Alhammadi, Branko Bijeljic & Martin Blunt
Three high resolution X-ray micro-tomography datasets of carbonate reservoir rock samples obtained after 20 pore volumes of waterflooding at subsurface conditions. The three samples (Sample 1, Sample 2 and Sample 3) have been aged to restore the reservoir wetting conditions (mixed-wettability). The mixed wetting conditions have been characterized by in situ effective contact angle measurements using the automated algorithm developed by AlRatrout et al., 2017 applied on the segmented images. More details can be found...

Digital Rendering of Sedimentary Relief Peels

Tip Meckel
Sedimentary-relief peels from field environments have been a primary observational technique for decades. Hundreds (likely thousands) of specimens of variable quality exist, representing a wide range of acquisition techniques, and depositional processes and sedimentary environments (e.g., Martinius and van den Berg, 2011). Peels are traditionally used to recognize and explain depositional processes and sedimentary textures qualitatively. This project is an effort to digitally capture sedimentary heterogeneity information represented by these unique specimens that are larger...

Gildehauser Sandstone

Steffen Berg, Ryan Armstrong & Andreas Weigmann
Micro-CT scans of a fast synchrotron-based micro-CT flow experiment performed in Gildehauser sandstone rock. The data set consists of - dry scan (at higher quality settings that the flow experiment itself) - dry scan segmented - time sequence of imbibition experiment (40 s time intervals), segmented into rock, oil and water phase

Gold grains scanned at various resolutions

Richard Ketcham
This project was to develop and test a method to measure the size and shape of particles that are small relative to the scan resolution, in a way that is accurate, reproducible, objective, and resolution-invariant. The scans are of an artificial core containing 12 gold grains embedded in quartz powder and epoxy (some iron filings are also mixed in), with sizes ranging from 100-300 microns (sphere-equivalent diameter), and a range of shapes. There are 12...

Hydrate-Bearing Sand

This project includes high resolution micro-CT images of one xenon hydrate growth experiment in sand. Data are from a paper by Xiongyu Chen, Rahul Verma, D. Nicolas Espinoza and Masa Prodanovic, published in Water Resources Research in 2018, titled "Pore-Scale Determination of Gas Relative Permeability in Hydrate-Bearing Sediments Using X-Ray Computed Micro-Tomography and Lattice Boltzmann Method" Conditions for xenon hydrate growth in sand: T=23C, P_initial =3.72 MPa. Aqueous phase is 10wt% NaBr brine. The image...

X-ray CMT Images of Abiotic Carbonate Precipitation in Porous Media from a Supersaturated Solution

Seung-Hun Baek &
This file contains X-ray computed microtomography (CMT) images used to analyze abiotic carbonate precipitation in porous media from a supersaturated solution. An X-ray transparent and rigid-walled polycarbonate column was developed to hold the sand pack tight during the carbonate precipitation process. The column consisted of a polycarbonate tube with an inner diameter of 3.18 mm, an outer diameter of 9.53 mm, and a height of 44.1 mm. Two polycarbonate discs and two stainless steel springs...

Dual-Energy Medical CT in Carbonate Rocks

Rodolfo A. Victor &
Carbonate whole cores used to test new methodology for dual energy X-ray CT inversion.

A Multiscale Sandy Microstructure

Peyman Mohammadmoradi
Image stack of a multiscale microstructure including inter- and intragrain pore spaces. This project contains an image stack of 512 2D images creating a 3D multiscale sandy porous medium. The images are segmented with a resolution of 3 micrometers per pixel.

Pore scale in situ imaging of multiphase flow at steady-state for an altered mixed-wet Bentheimer sandstone

Shuangemei Zou, Yang Liu, Jianchao Cai & Ryan Armstrong
The data sets contains in situ imaged fluid distribitions for two-phase drainage at four fractional flows under steady state condition for a water-wet Bentheimer sandstone and an altered mixed-wet Bentheimer sandstone. These multiphase images are used for curvature measurement and relative permeability measurement for two wettability conditions while dry images are used for porosity and absolute permeability measurements. Further details on experimental protocols can be found in Zou (2018,2019). Data was acquired at the University...

Digital Rocks Portal

Masa Prodanovic, Maria Esteva, Matthew Hanlon, Gaurav Nanda & Prateek Agarwal
The Digital Rock Portal has the purpose of enhancing research resources for modeling/prediction of porous material properties in the fields of Petroleum, Civil and Environmental Engineering as well as Geology. This platform allows managing and preserving available images of porous materials and experiments performed on them, and any accompanying measurements (porosity, capillary pressure, permeability, electrical, NMR and elastic properties, etc.) required for both validation on modeling approaches and the upscaling and building of larger (hydro)geological...

Synthetic fractures with varying roughness and mineralogy

Honggeun Jo Javier E. Santos
Synthetic fractures were created to quantify the effect of heterogeneity in surface roughness and mineralogy (which affects wettability) for multiphase flow. This project includes: 1) Rough fractures 2) Slits exhibiting different mineral shape (circles and bands) 3) A heterogeneously wet fracture The matlab codes to create the geometries can be found at: https://github.com/je-santos/syntheticFractures

Multiphase Flows in Sandstones

Anna Herring, Adrian Sheppard, Michael Turner & Levi Beeching
Three water-wet sandstone types (Bentheimer, Berea, and Leopard) at different multiphase (air and brine) saturation conditions; including dry (irreducible water saturation), and partially drained. Data was acquired at the Australian National University CTLab, and image processing was accomplished via Mango.

Downscaling-based segmentation for unresolved images of highly heterogeneous granular porous samples

Ilenia Battiato Svyatoslav Korneev
We propose a simple and efficient algorithm of downscaling followed by segmentation to reconstruct the unresolved pore space from X-ray computed tomography (XCT) images of natural geological porous media columns. Contrary to widely employed single and multilevel threshold-based segmentation, the proposed method is based on a continuous map between pixel intensity and local pixel porosity that does not rely on the definition of arbitrary thresholds. The approach is used to generate a high-resolution binary image...

Fines migration in sediments containing methane hydrate during depressurization

Han Gyeol & Tae-Hyuk Kwon
This project presents the X-ray CT image sets obtained during depressurization of methane hydrate bearing sediments. Particularly, the imaging experiment aims on quantifying the extent of fines migration in sediments containing some fines due to depressurization. In this study, three sediments were tested as follows: (a) Ottawa 20-30 sand with 9%w/w silica silt (b) F110 sand with 11.5%w/w silica silt (c) F110 sand with 6%w/w kaolinite and 4%w/w silica silt. These three are referred to...

Registration Year

  • 2020
    33
  • 2019
    25
  • 2018
    22
  • 2017
    11
  • 2016
    18
  • 2015
    9

Resource Types

  • Dataset
    106
  • Image
    11
  • Collection
    1

Affiliations

  • The University of Texas at Austin
    11
  • UNSW Sydney
    8
  • Imperial College London
    7
  • Shell (Netherlands)
    3
  • Ghent University
    3
  • Los Alamos National Laboratory
    3
  • National Energy Technology Laboratory
    3
  • University of Illinois at Urbana Champaign
    3
  • Oregon State University
    2
  • Virginia Tech
    2