Research on Energy and Instability Criterion of Sandstone Hydraulic Fracturing in the Three Gorges Reservoir Area, Chongqing, China

<div>Comparison of the pore water pressure and energy and water volume curves of hydrofracture. (a) Uniaxial compression hydrofracture curve. (b) Triaxial compression hydrofracture curve.</div>

Geofluids

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Figure 7

Figure 7: Research on Energy and Instability Criterion of Sandstone Hydraulic Fracturing in the Three Gorges Reservoir Area, Chongqing, China 