Type:
Presentation
Link:
Drilling Technology and Other Engineering Issues in Geothermal Energy
Presenter:
Maurice B. Dusseault, Professor, Department of Earth and Environmental Sciences University of Waterloo, Waterloo Ontario, Canada
Citation:
Dusseault, M. Yellowknife Geoscience Forum 2018. (Presentation). Nov. 2018
Abstract:
The Four Geothermal Pillars
1. High-grade geothermal where steam is generated to drive turbines: ~T>140°C
2. Warm fluids in porous and permeable strata: ~T = 70-140°C
3. EGS – Enhanced Geothermal Systems, warm, low permeability: ~T = 70-140°C
4. Shallow, heat-pump based geoexchange, storage of heat in the upper ~500 m Below ~70°C – “district heating” or direct use of heat for drying, greenhouses, etc.