Research Article
Time Characteristics of the Influence Radius by Injecting N2 to Displace Coalbed Methane: A Case Study
Table 2
The comparison table of gas injection influence radius in vertical and horizontal directions.
| | Classification | Injection time (h) | | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| | Radius in horizontal direction (m) | 0.75 | 1.00 | 1.20 | 1.40 | 1.50 | 1.70 | 1.80 | 1.90 | 1.90 | 2.10 | | Radius in vertical direction (m) | 0.63 | 0.84 | 1.05 | 1.23 | 1.34 | 1.49 | 1.60 | 1.68 | 1.70 | 1.85 | | Difference (m) | 0.12 | 0.16 | 0.15 | 0.17 | 0.16 | 0.21 | 0.20 | 0.22 | 0.20 | 0.25 |
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