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<identifier>oai:HAL:hal-00903585v1</identifier>
<datestamp>2018-01-11</datestamp>
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<publisher>HAL CCSD</publisher>
<title lang=en>Permeability impairment of a limestone reservoir triggered by heterogeneous dissolution and particles migration during CO2-rich injection</title>
<creator>MANGANE, Papa Ousmane</creator>
<creator>Gouze, Philippe</creator>
<creator>Luquot, Linda</creator>
<contributor>Géosciences Montpellier ; Université des Antilles et de la Guyane (UAG) - Institut national des sciences de l'Univers (INSU - CNRS) - Université de Montpellier (UM) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<description>International audience</description>
<source>ISSN: 0094-8276</source>
<source>EISSN: 1944-8007</source>
<source>Geophysical Research Letters</source>
<publisher>American Geophysical Union</publisher>
<identifier>hal-00903585</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-00903585</identifier>
<source>https://hal.archives-ouvertes.fr/hal-00903585</source>
<source>Geophysical Research Letters, American Geophysical Union, 2013, 40 (17), pp.4614-4619. 〈10.1002/grl.50595〉</source>
<identifier>DOI : 10.1002/grl.50595</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.1002/grl.50595</relation>
<language>en</language>
<subject lang=en>CO2-enriched fluid injection</subject>
<subject lang=en>dissolution</subject>
<subject lang=en>particles migration</subject>
<subject lang=en>high-resolution X-ray microtomograph (XRMT)</subject>
<subject>[SDU.STU.GP] Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph]</subject>
<subject>[PHYS.PHYS.PHYS-GEO-PH] Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph]</subject>
<subject>[SDE.MCG] Environmental Sciences/Global Changes</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>A CO2-rich brine core-flood experiment in calcite limestone for conditions representative of underground storage (P = 12 MPa and T = 100°C) was performed in order to explore the dissolution mechanisms arising at moderate CO2 partial pressure (0.3 MPa). An increase of the total porosity (φT) accompanied by a persistent permeability (k) decrease was measured. The mechanisms controlling this atypical anticorrelated k − φT relationship were investigated from the analysis of high-resolution X-ray microtomography images of the sample acquired before and after the experiment. All the evidences converge to the conclusion that the ubiquitous decrease of permeability measured during the 44 h of dissolution is due to the clogging of a fraction of the macroporosity by microporous material triggered by the rearrangement of the detached undissolved particles. This mechanism results in the development of low permeability zones bridging the macroporosity.</description>
<date>2013-09-16</date>
</dc>
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