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Research and Application of “Concentric Ring” Reinforcement and Sealing Technology for Gas Drainage Boreholes in Soft-Coal Seams
[Image: see text] The problems of lack of stability and difficult sealing of gas drainage boreholes in soft-coal seams directly affect the efficient extraction of gas in these soft-coal seams. After the holes are drilled, the collapsed holes lead to the failure to seal in time, which brings hidden d...
| Autores principales: | , , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
| Publicado: |
American Chemical Society
2022
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| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9535734/ https://www.ncbi.nlm.nih.gov/pubmed/36211041 http://dx.doi.org/10.1021/acsomega.2c01388 |