COSMOS - CO2 Storage, Monitoring and Safety Technology ...
COSMOS - CO2 Storage, Monitoring and Safety Technology ...
COSMOS - CO2 Storage, Monitoring and Safety Technology ...
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Geomechanic Properties<br />
Strength <strong>and</strong> deformation parameters were measured in:<br />
• A novel triaxial apparatus of RWE power with high-resolution measurement of volume<br />
change, in the construction of which the IBF was significantly involved <strong>and</strong> which was<br />
loaned to IBF for these investigations,<br />
• A large-scale triaxial cell for samples of 600 mm diameter <strong>and</strong> 1200 mm length,<br />
• Uni-axial compression with real sample deformation monitoring by DMS.<br />
The reservoir<br />
formation in<br />
Ketzin is<br />
s<strong>and</strong>stone <strong>and</strong><br />
the cap rock a<br />
Keuper claystone<br />
with visco-elastic<br />
behaviour. As<br />
long as cores<br />
from Ketzin were<br />
not yet available,<br />
experiments<br />
were also<br />
performed<br />
• on artificial<br />
compacted<br />
bentonite<br />
samples<br />
Triaxial apparatus with high-resolution volume monitoring<br />
Bentonite sample, Ketzin small-scall sample, claystone larg-scale sample after failure<br />
• on a similar Keuper claystone from Southern Germany.<br />
Comparison of results from small-sized <strong>and</strong> large-sized samples shows no significant<br />
scale effects.
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