Geothermal energy is a type of renewable energy that comes from the heat derived within the subsurface of the earth. Geothermal energy can be produced and modelled using reservoir engineering principles. tNavigator offers two options for modelling geothermal processes.
The first consists of adding temperature options to the conventional Black Oil physics simulator. It allows calculating the heat exchange between the reservoir and its surroundings, temperature variations for saturation table and heat capacity of blocks with zero pore volume.
The second option is to simulate property changes due to geothermal processes in a compositional and thermal model. In addition to the properties calculated with the Black Oil option, it allows modelling of multi-component water, enthalpy as a function of pressure and temperature, the thermal conductivity of grid blocks and fluids viscosity changes with temperature.