Research Article
Experimental Study on the Damage of Artificial Fracture Permeability in Coal during the Flow Back of Guar-Based Fracturing Fluid
Table 1
The main components of each group of fracturing fluids.
| Group no. | Mass fraction of each additive | Thickener | Cross-linker | Antiswelling agent | Breaker |
| 1 | Hydroxypropyl guar (0.1%) | The organic boron (0.4%) | The KCl (1.5%) | The ammonium persulfate (0.04%) | 2 | Hydroxypropyl guar (0.2%) | 3 | Hydroxypropyl guar (0.3%) | 4 | Hydroxypropyl guar (0.4%) |
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