Dynamic reservoir-condition microtomography of reactive transport in complex carbonates: Effect of initial pore structure and initial brine pH in Ketton, Estaillades, and Portland Limestones.
A laboratory µ-CT scanner was used to image the dissolution of Ketton, Estaillades, and Portland limestones in the presence of CO2-acidified brine at reservoir conditions (10 MPa and 50 °C) at two injected acid strengths for a period of 4 h. Each sample was scanned between 6 and 10 times at ~4 µm resolution and multiple effluent samples were extracted. See also paper: H.P. Menke et al. Geochimica et Cosmochimica Acta 204 (2017) 267-285. https://doi.org/10.1016/j.gca.2017.01.053.
non geographic dataset
:
http://data.bgs.ac.uk/id/dataHolding/13607530
English
Geoscientific information
GEMET - INSPIRE themes, version 1.0:
BGS Thesaurus of Geosciences:
X ray analysis
Carbonate rocks
Limestone
UKCCS
NGDC Deposited Data
Tomography
Reservoir boundary
Carbon capture and storage
Free:
Free:
NERC_DDC
publication: 2019-10-04
2016-03-01
-
2016-05-31
Qatar Carbonates and Carbon Storage Research Centre
qccsrc@imperial.ac.uk
,
United Kingdom
email:
not available
Role: author
Qatar Carbonates and Carbon Storage Research Centre
qccsrc@imperial.ac.uk
,
United Kingdom
email:
not available
Role: point of contact
Imperial College London
Hannah Menke
London,
United Kingdom
email:
not available
Role: author
Imperial College London
Hannah Menke
London,
United Kingdom
email:
not available
Role: point of contact
Data Quality
To investigate the effect of pore-scale heterogeneity three limestone carbonates are examined: Ketton, Estaillades, and Portland Basebed. These samples were chosen because they were readily available, relatively chemically pure, and diverse in pore structure. The Zeiss Versa XRM-500 µ-CT scanner was used to image reaction between calcite and CO2 saturated brine at reservoir conditions. Using our in situ apparatus, ~1 cm long 4 mm diameter carbonate cores of Ketton, Estaillades, and Portland Basebed limestone were reacted by injecting both pH 3.6 and pH 3.1 supercritical (sc) CO2 saturated brine.Supercritical CO2 and 1% wt KCl 5% wt NaCl brine were pre-equilibrated at experimental conditions (10 MPa & 50 °C) in a heated Hastelloy reactor with an entrainment stirrer. Powdered particles of the host rock were used to raise the pH to 3.6 for three of the experiments.
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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
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Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]"
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2024-04-24