Research Article
Time Characteristics of the Influence Radius by Injecting N2 to Displace Coalbed Methane: A Case Study
Table 3
Borehole parameters in the injecting N2 influence radius test.
| | Borehole type | Specifications and sealing requirements of borehole | | Depth (m) | Diameter (mm) | Sealing depth (m) | Sealing method |
| | N2 injection borehole | 60 | 94 | 10 | | | Observation borehole | 60 | 94 | 10 | | | Borehole spacing (m) | |
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