Permeability Evolution of Naturally Fractured Coal Injected with High-Temperature Nitrogen: Experimental Observations
The permeability of more than 70% of coal seams in China is less than 1 mD, creating difficulties in recovering underground coal methane. Therefore, a new technology of high-temperature nitrogen (HTN<sub>2</sub>) injection into the coal seam was proposed to improve the coal permeability...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-02-01
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| Series: | Processes |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2227-9717/9/2/296 |