Full scale 3D-modelling of the coupled gas migration and heat dissipation in a planned repository for radioactive waste in the Callovo-Oxfordian clay

Enssle, Carl Philipp; Croisé, Jean; Poller, Andreas; Mayer, G.; Wendling, Jacques

doi:10.1016/j.pce.2011.07.033

Cited by 8 publications

(2 citation statements)

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“…Other phases (feldspar, pyrite) and organic matter have been detected but in mass quantities of less than a few percent . The COX is characterized by a low permeability (7 × 10 −13 m. s −1 ) and by a porosity between 11 and 16% …”

Section: Experimental Set‐upmentioning

confidence: 99%

Experimental study of CO₂ injection in a simulated injection well: the MIRAGES experiment

et al. 2013

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The MIRAGES experiment mimics an injection well at the lab scale (1/20). This experiment allows the injection of supercritical CO2 under geological conditions of pressure and temperature. The injection flow rate, confinement and injection pressures and temperatures are recorded during the 30 days of the experiment. Chemical parameters (pH, major element contents) are also monitored. The reservoir is represented by a core sampled in the formation of Lavoux limestone. The core is drilled to form an injection well in which an injection tube (made of stainless steel) is sealed with class G Portland cement together with two discs of Callovo‐Oxfordian clay representing the caprock. After the experiment, the core sample is studied to follow the petrophysical changes of the well materials and rocks. The interfaces between the reservoir, caprock, cement, and steel are investigated using scanning electron microscopy, cathodoluminescence, and Raman spectrometry. The main results suggest (i) good cohesion of the different interfaces despite the carbonation of the cement, (ii) the precipitation of different carbonate phases relating the changes in the chemistry of solution as a function of time, (iii) the enrichment in silica of the cement phase subjected to the action of CO2 providing evidence of new mechanisms of in situ silica re‐condensation, and (iv) the very good mechanical and chemical behavior of the caprock clay despite the alkaline flux from the cement and the acidic attack from the dissolved CO2.

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Section: Experimental Set‐upmentioning

confidence: 99%

Experimental study of CO₂ injection in a simulated injection well: the MIRAGES experiment

et al. 2013

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“…Only case using reference parameter values which were proposed in FORGE benchmark specification [8] were analyzed. The gas transport modelling was performed using TOUGH2 code, which is applicable worldwide for such type of problems [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Impact of Different Factors on Gas Migration in the Disposal Cell of Conceptual Geological Repository for High Level Radioactive Waste

Justinavičius

Narkūnienė

Poškas

2013

mech

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Modeling the Long‐term Stability of Multi‐barrier Systems for Nuclear Waste Disposal in Geological Clay Formations

Claret

Marty

Tournassat

2018

Reactive Transport Modeling

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Full scale 3D-modelling of the coupled gas migration and heat dissipation in a planned repository for radioactive waste in the Callovo-Oxfordian clay

Cited by 8 publications

References 4 publications

Experimental study of CO₂ injection in a simulated injection well: the MIRAGES experiment

Experimental study of CO₂ injection in a simulated injection well: the MIRAGES experiment

Impact of Different Factors on Gas Migration in the Disposal Cell of Conceptual Geological Repository for High Level Radioactive Waste

Modeling the Long‐term Stability of Multi‐barrier Systems for Nuclear Waste Disposal in Geological Clay Formations

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Full scale 3D-modelling of the coupled gas migration and heat dissipation in a planned repository for radioactive waste in the Callovo-Oxfordian clay

Cited by 8 publications

References 4 publications

Experimental study of CO2 injection in a simulated injection well: the MIRAGES experiment

Experimental study of CO2 injection in a simulated injection well: the MIRAGES experiment

Impact of Different Factors on Gas Migration in the Disposal Cell of Conceptual Geological Repository for High Level Radioactive Waste

Modeling the Long‐term Stability of Multi‐barrier Systems for Nuclear Waste Disposal in Geological Clay Formations

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Product

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Experimental study of CO₂ injection in a simulated injection well: the MIRAGES experiment

Experimental study of CO₂ injection in a simulated injection well: the MIRAGES experiment