A Case Study on the Gas Drainage Optimization Based on the Effective Borehole Spacing in Sima Coal Mine
Based on the dynamic expressions of permeability and porosity of the coal seam derived in the paper, a multiphysical field coupling numerical model of gas migration under the interaction of stress field and seepage field was established. The gas drainage project #3 Coal Seam operated by Sima Coal In...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Geofluids |
| Online Access: | http://dx.doi.org/10.1155/2021/5510566 |
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| author | Ming Ji Zhong-guang Sun Wei Sun |
| author_facet | Ming Ji Zhong-guang Sun Wei Sun |
| author_sort | Ming Ji |
| collection | DOAJ |
| description | Based on the dynamic expressions of permeability and porosity of the coal seam derived in the paper, a multiphysical field coupling numerical model of gas migration under the interaction of stress field and seepage field was established. The gas drainage project #3 Coal Seam operated by Sima Coal Industry Co., Ltd., was selected as the study object. Taking different drainage time periods in various positions of drainage holes into consideration, combined with the advance situation of the 1207 working face in the Sima Coal Mine, a mixed layout gas drainage scheme featured with the effective borehole spacing was obtained through the COMSOL multiphysics simulation. In addition, a series of field industrial tests were performed to validate the research result, revealing that comprehensively considering the extraction time of coal and optimizing the layout of extraction boreholes can effectively improve the engineering economic benefits. |
| format | Article |
| id | doaj-art-38c8bfff34be474f93ed468bfff77d6d |
| institution | OA Journals |
| issn | 1468-8115 1468-8123 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geofluids |
| spelling | doaj-art-38c8bfff34be474f93ed468bfff77d6d2025-08-20T02:38:58ZengWileyGeofluids1468-81151468-81232021-01-01202110.1155/2021/55105665510566A Case Study on the Gas Drainage Optimization Based on the Effective Borehole Spacing in Sima Coal MineMing Ji0Zhong-guang Sun1Wei Sun2Key Laboratory of Deep Coal Resource Mining, Ministry of Education of China and China University of Mining & Technology, Xuzhou 221116, ChinaState Key Laboratory of The Gas Disaster Detecting, Preventing and Emergency Controlling, Chongqing 400037, ChinaChina Coal Technology and Engineering Group Chongqing Research Institute, Chongqing 400039, ChinaBased on the dynamic expressions of permeability and porosity of the coal seam derived in the paper, a multiphysical field coupling numerical model of gas migration under the interaction of stress field and seepage field was established. The gas drainage project #3 Coal Seam operated by Sima Coal Industry Co., Ltd., was selected as the study object. Taking different drainage time periods in various positions of drainage holes into consideration, combined with the advance situation of the 1207 working face in the Sima Coal Mine, a mixed layout gas drainage scheme featured with the effective borehole spacing was obtained through the COMSOL multiphysics simulation. In addition, a series of field industrial tests were performed to validate the research result, revealing that comprehensively considering the extraction time of coal and optimizing the layout of extraction boreholes can effectively improve the engineering economic benefits.http://dx.doi.org/10.1155/2021/5510566 |
| spellingShingle | Ming Ji Zhong-guang Sun Wei Sun A Case Study on the Gas Drainage Optimization Based on the Effective Borehole Spacing in Sima Coal Mine Geofluids |
| title | A Case Study on the Gas Drainage Optimization Based on the Effective Borehole Spacing in Sima Coal Mine |
| title_full | A Case Study on the Gas Drainage Optimization Based on the Effective Borehole Spacing in Sima Coal Mine |
| title_fullStr | A Case Study on the Gas Drainage Optimization Based on the Effective Borehole Spacing in Sima Coal Mine |
| title_full_unstemmed | A Case Study on the Gas Drainage Optimization Based on the Effective Borehole Spacing in Sima Coal Mine |
| title_short | A Case Study on the Gas Drainage Optimization Based on the Effective Borehole Spacing in Sima Coal Mine |
| title_sort | case study on the gas drainage optimization based on the effective borehole spacing in sima coal mine |
| url | http://dx.doi.org/10.1155/2021/5510566 |
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