FIB-SEM and X-ray micro-tomographic images of carbonate rock dissolution during reactive CO2-saturated brine injection under reservoir conditions

Dataset description

The datasets contain FIB-SEM and X-ray micro-tomographic images of a wettability-altered carbonate rock sample before and after dissolution with reactive CO2-saturated brine at reservoir pressure and temperature conditions. The data were acquired with the aim of investigating CO2 storage in depleted oil fields that have oil-wet or mixed-wet conditions. Our novel procedure of injecting oil after reactive transport has revealed previously unidentified (ghost) regions of partially-dissolved rock grains that were difficult to identify in X-ray tomographic images after dissolution from single fluid phase experiments. The details of image files and imaging parameters are described in readme file.

Constraints

Imperial College London gratefully acknowledge permission to publish and funding from the Qatar Carbonates and Carbon Storage Research Centre (QCCSRC), provided jointly by Qatar Petroleum, Shell, and Qatar Science & Technology Park. Qatar Petroleum remain copyright owner.

Further information

For more information please contact:

Enquiries

Environmental Science Centre, Nicker Hill, Keyworth
Nottingham
NG12 5GG

Tel : +44 (0)115 936 3143
Fax :+44 (0)115 936 3276
Email :enquiries@bgs.ac.uk

Associated dataset(s)

Qatar Carbonates and Carbon Storage Research Centre (QCCSRC)

Dataset details

Author(s) qccsrc@imperial.ac.uk
Principal Investigator(s) Not available
Language English
Curator British Geological Survey
Supply media/format .raw; Version:NA
Storage format Not available
Frequency of update not applicable
Start of capture {ts '2017-03-28 00:00:00'} Not known
End of capture {ts '2017-03-31 00:00:00'} 31st March 2017
Online access URL various
Lineage statement The experiments were conducted on a 3.8 mm diameter and 13.3 mm long Ketton limestone rock sample from the Ketton quarry, Ruthland, U.K., which contains >99% calcite. The rock sample was imaged before fluid injection (dry scans), after dissolution and sequential injection of oil and brine at a voxel size of 2 μm, using a Zeiss Xradia 500 Versa X-ray micro-tomography scanner with 80 kV and 7 W settings. Two images were acquired at a distance of ~9.5 mm and ~3.5 mm from the base of the sample respectively. A total of 4000 projections were acquired for each tomographic image. We also conducted the FIB-SEM analysis at two different locations (control and partially dissolved) using an FEI Quanta 3D DualBeam FIB-SEM scanner.
Supplementary information
Constraints
Access constraints intellectualPropertyRights (rights to financial benefit from and control of distribution of non-tangible property that is a result of creativity)
Use constraints intellectualPropertyRights (rights to financial benefit from and control of distribution of non-tangible property that is a result of creativity)
Additional info on constraints Imperial College London gratefully acknowledge permission to publish and funding from the Qatar Carbonates and Carbon Storage Research Centre (QCCSRC), provided jointly by Qatar Petroleum, Shell, and Qatar Science & Technology Park. Qatar Petroleum remain copyright owner.
Contact details
Department Enquiries
Organisation British Geological Survey
Address Environmental Science Centre, Nicker Hill, Keyworth
City Nottingham
County Nottinghamshire
Country United Kingdom
Postcode NG12 5GG
E-mail enquiries@bgs.ac.uk
Telephone +44 (0)115 936 3143
Fax +44 (0)115 936 3276
Keywords
Topic category code (ISO) geoscientificInformation (information pertaining to earth sciences)
Keywords CARBONATE ROCKS
DISSOLUTION
TOMOGRAPHY
X RAY ANALYSIS
CARBON CAPTURE AND STORAGE
Keyword source BGS Keyphrases
Spatial details
Spatial Reference System Not available
Dataset extent
Coverage (Lat/Long) North boundary : 
East boundary  : 
South boundary : 
West boundary  : 
Metadata
Metadata language English
Metadata last updated 7th March 2019
Metadata standard compliance NERC profile of ISO19115:2003
Copyright and IPR
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.