X-ray micro-tomography dataset of Ketton carbonate

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 ┬Ám. 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. Shah, S M, Gray, F, Crawshaw, J P, and Boek, E S. 2015. Micro-Computed Tomography pore-scale study of flow in porous media: Effect of Voxel Resolution. Advances in Water Resources July 2015 doi:10.1016/j.advwatres.2015.07.012
non geographic dataset - non geographic dataset
:http://data.bgs.ac.uk/id/dataHolding/13607526
English
Geoscientific information
GEMET - INSPIRE themes: BGS Thesaurus of Geosciences:
Carbonates
X rays
Tomography
Carbon capture and storage
Free:
NERC_DDC
creation: 2017, publication: 2019
2013 - 2017
Qatar Carbonates and Carbon Storage Research Centre
qccsrc@imperial.ac.uk
, United Kingdom
email: not available
Role: point of contact
Imperial College London
Saurabh M Shah
London, United Kingdom
email: not available
Role: author
Imperial College London
Saurabh M Shah
London, United Kingdom
email: not available
Role: point of contact

Data Quality

Dry scans of small cylindrical sandstone and carbonate cores (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). 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. The 3D pore-scale images of the samples were scanned at four different voxel resolutions acquiring the same physical field of view by adjusting the X-ray source and detector position along with using an appropriate magnification lens.
INSPIRE Implementing rules laying down technical arrangements for the interoperability and harmonisation of Geology
Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services

Constraints

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.
Either: (i) the dataset is made freely available, e.g. via the Internet, for a restricted category of use (e.g. educational use only); or (ii) the dataset has not been formally approved by BGS for access and use by external clients under licence, but its use may be permitted under alternative formal arrangements; or (iii) the dataset contains 3rd party data or information obtained by BGS under terms and conditions that must be consulted in order to determine the permitted usage of the dataset. Refer to the BGS staff member responsible for the creation of the dataset if further advice is required. He / she should be familiar with the composition of the dataset, particularly with regard to 3rd party IPR contained in it, and any resultant use restrictions. This staff member should revert to the IPR Section (ipr@bgs.ac.uk) for advice, should the position not be clear.

Metadata about metadata

934aa2ff-b05b-1300-e054-002128a47908
British Geological Survey
Mowat,Mary R
The Lyell Centre, Research Avenue South, EDINBURGH, EH14 4AP, United Kingdom
tel: +44 131 667 1000
email: enquiries@bgs.ac.uk
Role: point of contact
2020-09-11
English

Coupled Resource