CO2-Plume Geothermal (CPG) Heat Extraction in Multi-layered Geologic Reservoirs
- Conference Paper
CO2-Plume Geothermal (CPG) technology involves injecting CO2 into natural, highly permeable geologic units to extract energy. The subsurface CO2 absorbs heat from the reservoir, buoyantly rises to the surface, and drives a power generation system. The CO2 is then cooled and reinjected underground. Here, we analyze the effects of multi-layered geologic reservoirs on CPG system performance by examining the CO2 mass fraction in the produced fluid, pore-fluid pressure buildup during operation, and heat energy extraction rates. The produced CO2 mass fraction depends on the stratigraphic positions of highly permeable layers which also affect the pore-fluid pressure drop across the reservoir. Show more
Book title12th International Conference on Greenhouse Gas Control Technologies, GHGT-12
Journal / seriesEnergy Procedia
Pages / Article No.
SubjectCarbon dioxide; Geothermal system; Reservoir simulations; Heterogeneity; Brine displacement; Carbon capture and sequestration (CCS); Carbon capture utilization and sequestration (CCUS)
Organisational unit09494 - Saar, Martin O. / Saar, Martin O.
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