Research Article
Influence of Water Injection Pressure on Methane Gas Displacement by Coal Seam Water Injection
Table 1
Physical parameters of coal sample.
| | Physical parameters | Moisture (%) | Ash content (%) | | Volatile matter (%) | True relative density (cm3/g) | Apparent relative density (cm3/g) | Porosity (%) |
| | Value | 1.38 | 20.27 | | 30.97 | 1.43 | 1.34 | 6.29 |
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