Research Article
Numerical Simulation and Sensitivity Analysis of Hydraulic Fracturing in Multilayered Thin Tight Sandstone Gas Reservoir
Table 5
The injection pumping procedure for hydraulic fracturing of well X-1.
| | Fracturing injection stage | Injection volume (m3) | Proppant concentration (kg/m3) | Injection rate (m3/min) | Single-stage injection time (min) | Total injection time (min) | Fluid type | Proppant type |
| | 1 | 50 | 0 | 5 | 10.0 | 10.0 | Gel | / | | 2 | 20.5 | 73 | 5 | 4.1 | 14.1 | Gel | 40/70 mesh | | 3 | 50 | 0 | 5 | 10.0 | 24.1 | Gel | / | | 4 | 31.6 | 145 | 5 | 6.3 | 30.4 | Gel | 30/50 mesh | | 5 | 37.8 | 218 | 5 | 7.6 | 38.0 | Gel | 30/50 mesh | | 6 | 45.3 | 290 | 5 | 9.1 | 47.0 | Gel | 30/50 mesh | | 7 | 45.3 | 363 | 5 | 9.1 | 56.1 | Gel | 30/50 mesh | | 8 | 34.8 | 435 | 5 | 7.0 | 63.1 | Gel | 30/50 mesh | | 9 | 11.9 | 508 | 5 | 2.4 | 65.4 | Gel | 30/50 mesh | | 10 | 19.1 | 0 | 5 | 3.8 | 69.3 | Gel | 30/50 mesh |
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