Research Article
Time Characteristics of the Influence Radius by Injecting N2 to Displace Coalbed Methane: A Case Study
Table 6
Comparison of the calculation results and the test results.
| Gas injection time (h) | Radius of field test (m) | Radius of numerical simulation (m) | Error | Formula (11) radius (m) | Relative error |
| 1 | 0.8 | 0.75 | 6.25% | 0.76 | 4.80% | 2 | 1.0 | 1.0 | 0 | 1.04 | 3.65% | 4 | 1.5 | 1.4 | 6.67% | 1.41 | 5.96% | 7 | 2.0 | 1.8 | 10% | 1.81 | 9.54% |
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