CO2 -DISSOLVED: a Novel Concept Coupling Geological Storage of Dissolved CO 2 and Geothermal Heat Recovery – Part 4: Preliminary Thermo-Hydrodynamic Simulations to Assess the CO2 Storage Efficiency
Résumé
The CO2 -DISSOLVED project aims at assessing the technical-economic feasibility of coupling CO2 storage in a saline aquifer and geothermal heat recovery. The proposed infrastructure basically relies on a standard geothermal doublet where CO2 would be injected after having been entirely dissolved in the cooled brine. The objective of this preliminary thermo-hydrodynamic modeling study was to quantify the expected CO 2 storage lifetime and efficiency. The results first confirmed that CO2 will inevitably be produced in the extracted brine after 2-15 years of continuous injection, depending on the operating parameters. However, mass balance calculations evidenced that after a 30 year injection period, 37-85% of the total CO2 injected should remain stored in the aquifer.
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Energy_Procedia_GHGT12_Hamm_Kervévan_Thiéry.pdf (1.15 Mo)
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poster_PTHS_vf.pdf (1.82 Mo)
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