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<title lang=en>CoFIS and TELog: New downhole tools for characterizing dispersion processes in aquifers by single-well injection-withdrawal tracer tests</title>
<creator>Gouze, Philippe</creator>
<creator>Leprovost, Richard</creator>
<creator>Poidras, Thierry</creator>
<creator>Le Borgne, Tanguy</creator>
<creator>Lods, Gerard</creator>
<creator>Pezard, Philippe</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>
<contributor>Géosciences Rennes (GR) ; Université de Rennes 1 (UR1) - Institut national des sciences de l'Univers (INSU - CNRS) - Centre Armoricain de Recherches en Environnement - Centre National de la Recherche Scientifique (CNRS)</contributor>
<source>ISSN: 1631-0713</source>
<source>Comptes Rendus Géoscience</source>
<publisher>Elsevier Masson</publisher>
<identifier>hal-00445250</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-00445250</identifier>
<source>https://hal.archives-ouvertes.fr/hal-00445250</source>
<source>Comptes Rendus Géoscience, Elsevier Masson, 2009, 341 (10-11), pp.965-975. 〈10.1016/j.crte.2009.07.012〉</source>
<identifier>DOI : 10.1016/j.crte.2009.07.012</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.1016/j.crte.2009.07.012</relation>
<language>en</language>
<subject lang=en>Single-well injection-withdrawal tracer tests</subject>
<subject lang=en>Dual-packer probe</subject>
<subject lang=en>Fluorescent optical sensors</subject>
<subject lang=en>Dispersion</subject>
<subject lang=en>Non-Fickian behaviour</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>Contaminant migration in aquifers is one of the most debated issues in hydrogeology, as most experimental results display large deviations from the standard (asymptotic) Fickian dispersion theories. Multi-scale investigation and high-resolution sensors are required to determine the origin of non-asymptotic dispersion and validate models. For this, a set of multi-scale Single-Well Injection-Withdrawal (SWIW) tracer tests using a new dual-packer probe CoFIS, including a high resolution optical sensor TELog, are presented. When compared to standard techniques such as salinity measurements, it is shown that high-resolution optical measurements allow an improved characterization of the long-lasting non-asymptotic dispersion mechanisms.</description>
<date>2009</date>
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