Addressing caprock failure tendency in deep saline aquifers through ...
Addressing caprock failure tendency in deep saline aquifers through ...
Addressing caprock failure tendency in deep saline aquifers through ...
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Uncerta<strong>in</strong>ty on the Caprock hydraulic properties<br />
Observation : the <strong>caprock</strong> properties have an important <strong>in</strong>fluence on the<br />
overpressure at the <strong>in</strong>terface with the reservoir aquifer layer (Birkholzer et al., 2009)<br />
Objective : def<strong>in</strong>e the <strong>caprock</strong> properties so that the overpressure is maximum =<br />
critical configuration<br />
Property<br />
Intr<strong>in</strong>sic permeability<br />
Permeability<br />
anisotropy<br />
Porosity<br />
Symbol Lower<br />
bound<br />
Upper<br />
bound<br />
Kh 5.e-5 1.0 mD<br />
A 1/100 1/10 (-)<br />
ω 5 15 %<br />
Van Genuchten<br />
parameter P0 1 8 MPa<br />
Unit Reference<br />
Lab test of the Geocarbone<br />
Integrity project, Fleury et al.,<br />
2007<br />
Andra, 2005<br />
Assumed<br />
Lab test of the Geocarbone<br />
Integrity project, Fleury et al.,<br />
vendredi 12 ju<strong>in</strong> 2009 > > 112<br />
2007<br />
Lab test of the Geocarbone<br />
Integrity project, Fleury et al.,<br />
2007<br />
Andra, 2005<br />
Andre et al., 2007<br />
Bachu and Bennion, 2007<br />
Van Genuchten<br />
parameter<br />
λ 0.330 0.600 (-)<br />
Residual Water<br />
saturation<br />
Slr 20 30 %<br />
Birkholzer et al., 2009<br />
Residual Gas<br />
saturation<br />
Sgr 5 35 %<br />
Bachu and Bennion, 2007<br />
Birkholzer et al., 2009<br />
Pore compressibility C 4.5e-10 9.0e-10 Pa-1 Birkholzer et al., 2009
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