A/Prof. ABHIJIT CHAUDHURI
Indian Institute of Technology, Madras (India)
Evolution of geothermal reservoirs and
other geological formations due to engineering intervention and natural triggers
The non-uniform dissolution/precipitation of minerals can instigate interesting transition of flow and heat transfer regimes inside porous and fractured geothermal reservoirs. For example, the continuous dissolution of vertical fracture walls can lead to “delayed” buoyant convection instability. The evolution of an engineered system such as enhanced geothermal system (energy extraction by pumping of hot water) is also affected substantially by thermo-hydro-chemical processes. Depending on the mineral types, chemical composition and temperature of water injection, energy production is affected differently. Thermo-hydro-mechanical deformation of geothermal reservoirs during heat extraction can also lead to significant alterations in reservoir transmissivity and energy production rates. Various complex evolution patterns are realized in other geological formations such as oil and gas hydrate reservoirs and sedimentary basins due to extraction and sequestration processes. Some interesting results will be presented in this seminar.
The Gregory Lab (Room 218) School of Earth Sciences, McCoy Building (200) The University of Melbourne (MAP)