Research Progress and Discussion on Sealing Materials
DOI:
https://doi.org/10.54097/1q135z43Keywords:
Coal seam gas; gas extraction; borehole sealing; sealing materials.Abstract
Reducing the gas content in the coal seam can create a safer working environment for underground workers. One effective method is gas extraction and coal seam water injection. The key to this process is drilling sealing, which requires high-performance sealing materials. This paper presents an overview of commonly used sealing materials, including clay materials, cement-based materials, high water materials, and polyurethane materials. It describes the application and research status of each type of material, discusses current issues and improvements, and concludes with a look towards future developments.
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