A New Method to Improve the Fracturing Effect of Coal Seams by Using Preset Slots and Induced Stress Shadows

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124C124 161 146 180 185 198C206 208 254 229 275 240V84Z"></path></g></svg> and injection rates of (a) 1.3 ml/s and (b) 13 ml/s in the simulation of lab-scale hydraulic fracture propagation with a preset slot.</div>

Geofluids

fig6

Figure 6

Figure 6: A New Method to Improve the Fracturing Effect of Coal Seams by Using Preset Slots and Induced Stress Shadows 