CO2-induced salt precipitation test in sandstone (NERC Grant NE/R013535/1)
Here we present the dataset collected during a CO2 flow-through test using a synthetic sandstone of high porosity and permeability, originally saturated with high salinity brine, performed under realistic shallow reservoir conditions stress. During the test, we collect geophysical data (elastic and electrical properties) which record petrophysical variations in the rock related to the precipitation of salt, induced by a continuous CO2 flow through the sample.
nonGeographicDataset
https://www.bgs.ac.uk/services/ngdc/accessions/index.html?#item136045
function: download
http://data.bgs.ac.uk/id/dataHolding/13607633
eng
geoscientificInformation
publication
2008-06-01
Salt
Carbon capture and storage
Resistivity
Carbon dioxide
revision
2011
NERC_DDC
creation
2020
notApplicable
We used a 25% NaCl synthetic brine solution prepared with deionized water to promote rapid crystallization during CO2–induced evaporation. The sample is confined in a triaxial cell and subjected to a CO2 flow-through test. We monitored geophysical, mechanical and transport properties, for drainage and imbibition conditions, representative of the injection and post-injection stages of the CO2 storage process. We collected ultrasonic P- and S-wave velocities and their respective attenuation factors, axial strains, electrical resistivity, pore pressure and temperature. Then we transform the electrical resistivity into degree of brine saturation using Archie's first and second laws.
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
MS Excel
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National Oceanography Centre, Southampton
originator
National Oceanography Centre, Southampton
principalInvestigator
British Geological Survey
distributor
British Geological Survey
pointOfContact
British Geological Survey
Environmental Science Centre,Keyworth
NOTTINGHAM
NG12 5GG
United Kingdom
+44 115 936 3100
pointOfContact
2020-08-04