Advances in Laboratory-Scale Hydraulic Fracturing Experiments

Figure 7

Temperature effect on the hydraulic fracturing behavior and tensile strength of Harcourt granite [44]. (a) Injection pressure-time curves at 40 MPa confining pressure. (b) Injection-time curves at 60 MPa confining pressure. (c) Breakdown pressure-temperature curves. (d) Tensile strength-temperature curve.

(a)

(b)

(c)

(d)