Reference : Transport heterogeneity quantification in heterogeneous fractured media - Chalk
Scientific congresses and symposiums : Poster
Engineering, computing & technology : Geological, petroleum & mining engineering
Transport heterogeneity quantification in heterogeneous fractured media - Chalk
Hoffmann, Richard mailto [Université de Liège - ULiège > > > Form. doct. sc. ingé. & techn. (archi., gén. civ. - paysage)]
Goderniaux, Pascal [Mons University > Polytech Mons > Geology and Applied Geology > >]
Dassargues, Alain [Université de Liège - ULiège > Département ArGEnCo > Hydrogéologie & Géologie de l'environnement >]
Journée du département de l'UR ArGEnCo/UEE
February 18, 2019
Department of Urban and Environmental Engineering - Liege University
[en] Fractured media ; Dissolved Gas tracer ; Heat tracer ; Chalk
[en] The realistic assessment and the quantification of heterogeneity is crucial for transport in fractured rocks. Common solute tracer tests are limited to advection, while smart tracer as dissolved gases or heat offer new innovative process imaging possibilities for fractured media. Within the PhD program these smart tracers were injected between two adjacent boreholes (7.55 m distance) in the double porosity Chalk at Mons in Belgium. Preliminary fields result shows a diffusion induced variation between the one magnitude higher diffusive Helium and the used dye tracer Uranine. In the heat case, heat is 12.5 hours delayed compared to Uranine, due to matrix storage effects. Also, after stopping the heat injection and a temporary temperature drop down, a temperature rebound was measurable. The preliminary results motivate for further numerical modelling to get a realistic assessment of heterogeneity.
Joint heat and solute tracer test inversion for imaging preferential pathways
Professionals ; Students ; General public
H2020 ; 722028 - ENIGMA - European training Network for In situ imaGing of dynaMic processes in heterogeneous subsurfAce environments

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UEE_DepartmentDay_RichardHoffmann_LiegeUniversity_2019.pdfPreliminary field resultsAuthor postprint1.44 MBRequest copy

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