Effects of Water and scCO₂ Injection on the Mechanical Properties of Granite at High Temperatures

Figure 4

Results of conventional triaxial compression experiments on granite specimens: (a) stress-strain curves of granite specimens under 5 MPa confining pressure and different temperature conditions; (b) stress-strain curves of granite specimens under water injection (10 MPa) and different temperature conditions; (c) stress-strain curves of granite specimens under CO₂ injection (10 MPa) and different temperature conditions; (d) the relationship between the peak stress of granite specimens and the temperature at the same effective confining pressure (5 MPa).

(a)

(b)

(c)

(d)