Table 4 Different gas injection pressures and different monitoring positions take time in the previous stage of rapid rise.
From: Effect of CO2 injection pressure on enhanced coal seam gas extraction
CO2 injection pressure | 0.6 MPa/ min | 0.8 MPa / min | 1.0 MPa / min |
|---|---|---|---|
8 cm away from the gas injection port (P1) | 4.53 | 0.42 | 0 |
18 cm away from the gas injection port (P2) | 32.98 | 25.42 | 24.83 |
28 cm away from the gas injection port (P3) | 56.27 | 47.42 | 44.83 |
