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

Figure 12

Failure potential for rotated fractures due to thermal stress in a bar diagram. It shows the percentage of fracture segments eligible for slip. Again, failure occurs only in a narrow range of orientations with the selected injection pressure. After 10 days of injection, thermal stress leads to possible slip in a wide range of orientations.