X-ray micro-tomography dataset of Ketton carbonate - Unsegmented (raw data)
The images in this dataset are a sample of Ketton carbonate from a micro-computed tomography (micro-CT) scan acquired with a voxel resolution of 4.52 µm. This dataset is part of a study on the effects of Voxel Resolution in a study of flow in porous media. A brief overview of this study summarised from Shah et al 2015 follows. A fundamental understanding of flow in porous media at the pore-scale is necessary to be able to upscale average displacement processes from core to reservoir scale. The study of fluid flow in porous media at the pore-scale consists of two key procedures: Imaging reconstruction of three-dimensional (3D) pore space images; and modelling such as with single and two-phase flow simulations with Lattice-Boltzmann (LB) or Pore-Network (PN) Modelling. Here we analyse pore-scale results to predict petrophysical properties such as porosity, single phase permeability and multi-phase properties at different length scales. The fundamental issue is to understand the image resolution dependency of transport properties, in order to up-scale the flow physics from pore to core scale.
nonGeographicDataset
https://www2.bgs.ac.uk/ukccs/accessions/index.html#item138225
name: Data
function: download
https://webapps.bgs.ac.uk/services/ngdc/accessions/index.html#item138225
name: Data
function: download
http://data.bgs.ac.uk/id/dataHolding/13607714
eng
geoscientificInformation
publication
2008-06-01
Tomography
Carbonates
Carbon capture and storage
revision
2011
NERC_DDC
2013-03-26
2015-01-01
creation
2020-05-06
notApplicable
Dry scans of small cylindrical Ketton carbonate core (5 mm diameter and 10 mm length) were scanned using a laboratory micro-CT scanner, a Versa XRM-500 X-Ray Microscope (Zeiss X-Ray Microscopy, Pleasanton, CA, USA). To study and analyse the effect of scaled voxel resolution on the pore-scale micro-CT images and corresponding transport properties, it was necessary to scan the sample with the same field of view with respect to change in voxel resolution. X-rays from a micro-focused X-ray source are used to look into the sample. The X-ray source produces a polychromatic X-ray beam and the projection data (3000 projections) were collected with a cone beam along the circular trajectory. The voltage was set at 80 kV and power at 7W. In our cone beam set-up, the voxel resolution is controlled by the proximity of the sample to the beam or X-ray source.
publication
2011
false
See the referenced specification
publication
2010-12-08
false
See http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:323:0011:0102:EN:PDF
TIF files
The copyright of materials derived from the British Geological Survey's work is vested in the Natural Environment Research Council [NERC]. No part of this work may be reproduced or transmitted in any form or by any means, or stored in a retrieval system of any nature, without the prior permission of the copyright holder, via the BGS Intellectual Property Rights Manager. Use by customers of information provided by the BGS, is at the customer's own risk. In view of the disparate sources of information at BGS's disposal, including such material donated to BGS, that BGS accepts in good faith as being accurate, the Natural Environment Research Council (NERC) gives no warranty, expressed or implied, as to the quality or accuracy of the information supplied, or to the information's suitability for any use. NERC/BGS accepts no liability whatever in respect of loss, damage, injury or other occurence however caused.
Imperial College London
London
United Kingdom
originator
British Geological Survey
distributor
British Geological Survey
pointOfContact
British Geological Survey
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EDINBURGH
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United Kingdom
+44 131 667 1000
pointOfContact
2021-10-13