CO2geothermics in abandoned coal mines

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CO2-geothermics in abandoned coal mines
Kris Piessens Michiel Dusar Royal Belgian
Institute of Natural Sciences Geological Survey
of Belgium
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Geothermal energy
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Hydro-Geothermal energy
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Hot-Dry Rock
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CO2-Geothermal energy
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Fluid propertiesReservoir filled with water
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Fluid propertiesReservoir filled with CO2
overpressure
P
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Fluid properties Reservoir filled with CO2
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Thermodynamics
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Thermodynamics
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Thermodynamics
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Thermodynamics
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Real world
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CO2-geothermicsConcept or Opportunity ?
Applicability Local Type Low-T,
Etherm Economics Low costs Efficiency Very
high Capacity Low to medium Flexibility
Good Energy input Very limited Environmenta
l inpact Very low