Improving coalbed methane recovery in fragmented soft coal seams with horizontal cased well cavitation
Hu Wen, Bin Cheng, Duo Zhang, Bingyi Jia, Xiugang Liu · 2024
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Description
Hu Wen and four colleagues develop a gentler way to draw coalbed methane from soft, broken seams, improving both mine safety and gas supply. Their method uses hydraulic erosion inside cased horizontal wells to carve cavities. It avoids the blasting with high-pressure water jets used in older approaches. Gas outbursts during mining are the hazard being cut.
A math model built on porous media theory and Darcy's law tunes the build settings. Simulations in engineering software guided the design choices. The authors present the cavitation technique as an original step for safe, efficient methane recovery from difficult seams. It also has environmental benefits, since it captures gas that would otherwise escape or endanger miners.
Catalog record
| CREATOR | Hu Wen, Bin Cheng, Duo Zhang, Bingyi Jia, Xiugang Liu |
|---|---|
| YEAR | 2024 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 83 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |