Comparative Study on Sealing Technology of Gas Drainage Borehole in Soft Coal Seam
This paper discusses four kinds of hole sealing technologies for gas drainage in soft coal seam, which are polyurethane hole sealing, cement mortar hole sealing, full-length screen pipe hole sealing and pipe direct connection technology. Through the observation of negative pressure loss, the sealing...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Faculty of Mechanical Engineering in Slavonski Brod, Faculty of Electrical Engineering in Osijek, Faculty of Civil Engineering in Osijek
2022-01-01
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| Series: | Tehnički Vjesnik |
| Subjects: | |
| Online Access: | https://hrcak.srce.hr/file/404846 |
| _version_ | 1797206736805822464 |
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| author | Xiaohua Jin Jiyu Zheng Zhihao Lin Shunheng Hua |
| author_facet | Xiaohua Jin Jiyu Zheng Zhihao Lin Shunheng Hua |
| author_sort | Xiaohua Jin |
| collection | DOAJ |
| description | This paper discusses four kinds of hole sealing technologies for gas drainage in soft coal seam, which are polyurethane hole sealing, cement mortar hole sealing, full-length screen pipe hole sealing and pipe direct connection technology. Through the observation of negative pressure loss, the sealing effect of four sealing technologies is analyzed, the polyurethane sealing effect is poor, the cement mortar, the full-length screen pipe combined with cement mortar and the direct connection technology of pipe are good; through the observation of gas concentration, the gas drainage effect of four sealing technologies is analyzed, the polyurethane sealing technology is the worst, and the direct connection technology of pipe is the worst. The gas drainage effect is the best; according to the sealing effect and gas drainage effect, the traditional polyurethane and cement mortar sealing technology cannot meet the gas drainage demand of the soft coal seam. In the case of slow drilling deformation, the full-length screen pipe sealing technology can be used. In the case of rapid drilling deformation, the direct connection of pipe sealing technology should be used. |
| first_indexed | 2024-04-24T09:11:46Z |
| format | Article |
| id | doaj.art-9979e7b5e76740ebb3704d8c02ffbc67 |
| institution | Directory Open Access Journal |
| issn | 1330-3651 1848-6339 |
| language | English |
| last_indexed | 2024-04-24T09:11:46Z |
| publishDate | 2022-01-01 |
| publisher | Faculty of Mechanical Engineering in Slavonski Brod, Faculty of Electrical Engineering in Osijek, Faculty of Civil Engineering in Osijek |
| record_format | Article |
| series | Tehnički Vjesnik |
| spelling | doaj.art-9979e7b5e76740ebb3704d8c02ffbc672024-04-15T17:46:57ZengFaculty of Mechanical Engineering in Slavonski Brod, Faculty of Electrical Engineering in Osijek, Faculty of Civil Engineering in OsijekTehnički Vjesnik1330-36511848-63392022-01-012941334133810.17559/TV-20220322090437Comparative Study on Sealing Technology of Gas Drainage Borehole in Soft Coal SeamXiaohua Jin0Jiyu Zheng1Zhihao Lin2Shunheng Hua3School of Energy & Environment, Zhongyuan University of Technology, Zhengzhou 450007, ChinaSchool of Resources and Safety Engineering, Henan University of Engineering, Zhengzhou 451191, ChinaSchool of Energy & Environment, Zhongyuan University of Technology, Zhengzhou 450007, ChinaSchool of Energy & Environment, Zhongyuan University of Technology, Zhengzhou 450007, ChinaThis paper discusses four kinds of hole sealing technologies for gas drainage in soft coal seam, which are polyurethane hole sealing, cement mortar hole sealing, full-length screen pipe hole sealing and pipe direct connection technology. Through the observation of negative pressure loss, the sealing effect of four sealing technologies is analyzed, the polyurethane sealing effect is poor, the cement mortar, the full-length screen pipe combined with cement mortar and the direct connection technology of pipe are good; through the observation of gas concentration, the gas drainage effect of four sealing technologies is analyzed, the polyurethane sealing technology is the worst, and the direct connection technology of pipe is the worst. The gas drainage effect is the best; according to the sealing effect and gas drainage effect, the traditional polyurethane and cement mortar sealing technology cannot meet the gas drainage demand of the soft coal seam. In the case of slow drilling deformation, the full-length screen pipe sealing technology can be used. In the case of rapid drilling deformation, the direct connection of pipe sealing technology should be used.https://hrcak.srce.hr/file/404846drillinggas drainagehole sealing technologysoft coal seam |
| spellingShingle | Xiaohua Jin Jiyu Zheng Zhihao Lin Shunheng Hua Comparative Study on Sealing Technology of Gas Drainage Borehole in Soft Coal Seam Tehnički Vjesnik drilling gas drainage hole sealing technology soft coal seam |
| title | Comparative Study on Sealing Technology of Gas Drainage Borehole in Soft Coal Seam |
| title_full | Comparative Study on Sealing Technology of Gas Drainage Borehole in Soft Coal Seam |
| title_fullStr | Comparative Study on Sealing Technology of Gas Drainage Borehole in Soft Coal Seam |
| title_full_unstemmed | Comparative Study on Sealing Technology of Gas Drainage Borehole in Soft Coal Seam |
| title_short | Comparative Study on Sealing Technology of Gas Drainage Borehole in Soft Coal Seam |
| title_sort | comparative study on sealing technology of gas drainage borehole in soft coal seam |
| topic | drilling gas drainage hole sealing technology soft coal seam |
| url | https://hrcak.srce.hr/file/404846 |
| work_keys_str_mv | AT xiaohuajin comparativestudyonsealingtechnologyofgasdrainageboreholeinsoftcoalseam AT jiyuzheng comparativestudyonsealingtechnologyofgasdrainageboreholeinsoftcoalseam AT zhihaolin comparativestudyonsealingtechnologyofgasdrainageboreholeinsoftcoalseam AT shunhenghua comparativestudyonsealingtechnologyofgasdrainageboreholeinsoftcoalseam |