Poster (Scientific congresses and symposiums)
Transport heterogeneity quantification in heterogeneous fractured media - Chalk
Hoffmann, Richard; Goderniaux, Pascal; Dassargues, Alain
2019Journée du département de l'UR ArGEnCo/UEE
 

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Keywords :
Fractured media; Dissolved Gas tracer; Heat tracer; Chalk
Abstract :
[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.
Disciplines :
Geological, petroleum & mining engineering
Author, co-author :
Hoffmann, Richard ;  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
Language :
English
Title :
Transport heterogeneity quantification in heterogeneous fractured media - Chalk
Publication date :
18 February 2019
Event name :
Journée du département de l'UR ArGEnCo/UEE
Event organizer :
Department of Urban and Environmental Engineering - Liege University
Event place :
Liege, Belgium
Event date :
February 18, 2019
European Projects :
H2020 - 722028 - ENIGMA - European training Network for In situ imaGing of dynaMic processes in heterogeneous subsurfAce environments
Name of the research project :
Joint heat and solute tracer test inversion for imaging preferential pathways
Funders :
CE - Commission Européenne
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since 26 February 2019

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