Research Article
Influence of Extreme Temperature on the Pore and Fracture Development of High-Rank Coal
Table 2
Porosity and permeability of coal samples under low temperature.
| | Number | Project | | Temperature (°C) | Porosity | Increase rate (%) | Permeability (10−4·mD) | Increase rate (%) |
| | JLS-1 | 30 | 2.959 | 5 | 0.087 | 35.6 | | JLS-1 | −196 | 3.107 | 0.118 | | ZG1-1 | 30 | 6.457 | 3.8 | 2.688 | 32.7 | | ZG1-1 | −196 | 6.7 | 3.568 | | ZG2-1 | 30 | 7.228 | 6.8 | 40.078 | 29.5 | | ZG2-1 | −196 | 7.721 | 51.916 | | WTP-1 | 30 | 8.976 | 5.1 | 623.459 | 34 | | WTP-1 | −196 | 9.438 | 835.536 |
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