9 Works

Network Generation Comparison Forum

Adrian Sheppard & Gerd Schroeder-Turk
A collaborative project for objective comparison of network generation algorithms for 3D tomographic data sets of porous media

Naturally fractured coal sample

D. Nicolas Espinoza
Intact coal cores: X-ray (100kV and 250µA) with a 0.1mm filter of Cu to reduce beam hardening effect, detector (5fps (frame per second) and average of 10 = exposure time per radiography of #2s), number of radiographies 1440 over 360°. Image: 1634x1634x4115 voxels, 16bit with a resolution (both voxel size and spot size) of 25µm. Device: Ultratom RXSolutions Operator: Nicolas Lenoir Facility Location: Laboratoire Navier

Estaillades Carbonate

Bagus Putra Muljadi
The effect of pore-scale heterogeneity on non-Darcy flow behaviour is investigated by means of direct flow simulations on 3-D images of Estaillades carbonate. The critical Reynolds number indicating the cessation of the creeping Darcy flow regime in Estaillades carbonate is two orders of magnitude smaller than in Bentheimer sandstone, and is three orders of magnitude smaller than in the beadpack. It is inferred from the examination of flow field features that the emergence of steady...

Bentheimer Sandstone

Bagus Putra Muljadi
The effect of pore-scale heterogeneity on non-Darcy flow behaviour is investigated by means of direct flow simulations on 3-D images of Bentheimer sandstone and Estaillades carbonate. The critical Reynolds number indicating the cessation of the creeping Darcy flow regime in Estaillades carbonate is two orders of magnitude smaller than in Bentheimer sandstone, and is three orders of magnitude smaller than in the beadpack.

Partially Cemented Tight Sandstone Fracture

Masa Prodanovic, Adenike Tokan-Lawal & Peter Eichhubl
X-ray microtomography image of partially cemented fracture from Travis Peak Formation in Texas, well SFOT #1, sample taken from depth of 10105ft.

Sheared coal sample

D. Nicolas Espinoza
Sheared coal core: X-ray (100kV and 250µA), detector (7fps (frame per second) and average of 10 = exposure time per radiography of #1.4s), number of radiographies 1440 over 360°. Image: 1840x1840x1127 voxels, 16bit with a resolution (both voxel size and spot size) of 25µm. Reconstruction method: FBP (Filtered Back Projection) --> Feldkamp method (cone beam geometry) with Tukey filter. Device: Ultratom RXSolutions Operator: Nicolas Lenoir Facility Location: Laboratoire Navier

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 Rock Salt

Soheil Ghanbarzadeh, Marc A. Hesse, Masa Prodanovic & James E. Gardner
Deep geological storage sites for nuclear waste are commonly located in rock salt to ensure hydrological isolation from groundwater. The low permeability of static rock salt is due to a percolation threshold. However, deformation may be able to overcome this threshold and allow fluid flow. We confirm the percolation threshold in static experiments on synthetic salt samples with x-ray microtomography. We then analyze wells penetrating salt deposits in the Gulf of Mexico. The observed hydrocarbon...

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%.

Registration Year

  • 2015
    9

Resource Types

  • Dataset
    8
  • Collection
    1