Research Article

On the Role of Thermal Stresses during Hydraulic Stimulation of Geothermal Reservoirs

Table 1

Properties used in estimation of well temperature profiles.

Surface temperature
Injection temperature
Geothermal gradient 0.04°C/m
Well depths 5000 m
Well radius 0.11 m
Injection rate 20/40 kg/s
Rock density 2650 kg/m3
Mean thermal conductivity (formation)
Mean thermal diffusivity (formation)
Specific heat capacity (fluid)