Advanced well model for superhot and saline geothermal reservoirs

We present a new well model aimed at simulating deep and superhot geothermal wells within reservoir-scale flow models. The uses classic multi-segment approach to solve the hydrodynamics but also includes several important features significantly expanding its capabilities. Firstly, we use thermodynamic tables allowing us accurately fluids all relevant pressures, temperatures salinity conditions up magmatic conditions. can account for transport of dissolved NaCl salt potential precipitation in form halite. Secondly, an air phase incorporates transient displacement air-water interface well. This allows simulate starting using pressurization technique. Lastly, is coupled unstructured reservoir grid on which magma bodies feed zones be explicitly represented. paper introduces technical details presents applications showcasing what insights could gained concerning performance wells. conducted two sets simulation: first, simulated resource resulting from strongly enhanced heat flux with single feedzone; assessed effects feedzone's permeability, temperature initial performance. In second set simulations, used more realistic hydrothermal system, driven by intrusion. From results illustrate examples factors control ability self-start, if how aid wells, production supercritical created near intrusion may evolve over 200 years, halite rapidly clog case saline resources.