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Evaluation of CO2 leakage to aquifers and the surface from a multiscale approach combining flow along the wellbore and the overburden

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Abstract

It has been demonstrated that CO2 migration along a well is one of the greatest risks of CO2 migration out of a storage reservoir, for two reasons: CO2 migration along the injection well to the geology, and CO2 migration from geology to a remote well). Indeed, such combinations of vertical and horizontal flows may lead in a longer term to the migration of both CO2 and its impurities towards a critical aquifer or to the surface level, which are 'altered' scenarios that are to be considered in a risk assessment frame.
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ineris-00970847 , version 1 (02-04-2014)

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Alain Thoraval, Yvi Le Guen, Régis Farret, Ronan Le Meur, Emmanuel Houdu. Evaluation of CO2 leakage to aquifers and the surface from a multiscale approach combining flow along the wellbore and the overburden. 6. Trondheim CCS Conference (TCCS-6), Jun 2011, Trondheim, Norway. ⟨ineris-00970847⟩

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