Fig. 4
From: Hydrological constraints on the potential of enhanced geothermal systems in the ductile crust
Three-dimensional structure of a nominally ductile rock enhanced geothermal system (NDR-EGS) showing the fluid pressure distribution around a geothermal triplet, with a centrally located injector (blue) located between two production intervals (red). Results are shown after A 1 year and B 10 years for a simulation with an injection rate of 80 kg s−1 and a maximum permeability of ~ 10–15 m2