Approach to increasing the quality of pressure-relieved gas drained from protected coal seam using surface borehole and its industrial application
During mining of lower protective coal seam, a surface borehole can efficiently extract not only the pressure-relieved gas from the protected layer, but also the gas from the mining layer gob. If the distance between the borehole and gob is too large, the quantity of gas drained from the protected l...
Gespeichert in:
| Veröffentlicht in: | International journal of coal science & technology 2015-03, Vol.2 (1), p.46-51 |
|---|---|
| Hauptverfasser: | , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 51 |
|---|---|
| container_issue | 1 |
| container_start_page | 46 |
| container_title | International journal of coal science & technology |
| container_volume | 2 |
| creator | Liu, Yingke Zhou, Fubao Wang, Jianlong Liu, Jun |
| description | During mining of lower protective coal seam, a surface borehole can efficiently extract not only the pressure-relieved gas from the protected layer, but also the gas from the mining layer gob. If the distance between the borehole and gob is too large, the quantity of gas drained from the protected layer decreases substantially. To solve this problem, a mathematical model for extracting pressure-relieved gas from a protected coal seam using a surface borehole was established, based on the radial gas flow theory and law of conservation of energy. The key factors influencing the quantity of gas and the drainage flow network using a surface borehole were presented. The results show that the quantity of pressure-relieved gas drained from the protected layer can be significantly increased by increasing the flow resistance of the borehole bottom. Application of this method in the Wulan Coal Mine of the Shenhua Group significantly increased the flow of pure gas and the gas concentration （by factors of 1.8 and 2.0, respectively）, thus demonstrating the remarkable effects of this method. |
| doi_str_mv | 10.1007/s40789-015-0064-3 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_journals_2413789343</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><cqvip_id>665591364</cqvip_id><sourcerecordid>2413789343</sourcerecordid><originalsourceid>FETCH-LOGICAL-c3013-b4425d2d23f3992d96c6eb53006274efb6ac49b6bef69b05ecc66177c87cb9113</originalsourceid><addsrcrecordid>eNp9kMtKAzEUhgdRsGgfwF3QdTS3yUyWpXgDwY2uQyZzpk2ZTqZJRuhr-MSmVnTn6pwD_-XwFcUVJbeUkOouClLVChNaYkKkwPykmDGqalzVjJ_mnagS10zx82Ie44YQQoVigopZ8bkYx-CNXaPkkRtsABPdsEJpDWg3md6lPfIdGgPEOAXAAXoHH9CilYmoDcYNee-C32aJT2BTPq03PYpgtmj6zsrGzlhAjQ-w9j0gM7TIpZj72imm4LLcjGPvrEnOD5fFWWf6CPOfeVG8P9y_LZ_wy-vj83Lxgi0nlONGCFa2rGW840qxVkkroSl5JsAqAV0jjRWqkQ10UjWkBGulpFVl68o2ilJ-Udwcc_Pnuwli0hs_hSFX6syGZ6Jc8KyiR5UNPsYAnR6D25qw15ToA319pK8zfX2grw8edvTErB1WEP6S_zNd_xSt_bDaZd9vk5RlqSiXgn8BjcSVmA</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2413789343</pqid></control><display><type>article</type><title>Approach to increasing the quality of pressure-relieved gas drained from protected coal seam using surface borehole and its industrial application</title><source>DOAJ Directory of Open Access Journals</source><source>Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals</source><source>Springer Nature OA Free Journals</source><creator>Liu, Yingke ; Zhou, Fubao ; Wang, Jianlong ; Liu, Jun</creator><creatorcontrib>Liu, Yingke ; Zhou, Fubao ; Wang, Jianlong ; Liu, Jun</creatorcontrib><description>During mining of lower protective coal seam, a surface borehole can efficiently extract not only the pressure-relieved gas from the protected layer, but also the gas from the mining layer gob. If the distance between the borehole and gob is too large, the quantity of gas drained from the protected layer decreases substantially. To solve this problem, a mathematical model for extracting pressure-relieved gas from a protected coal seam using a surface borehole was established, based on the radial gas flow theory and law of conservation of energy. The key factors influencing the quantity of gas and the drainage flow network using a surface borehole were presented. The results show that the quantity of pressure-relieved gas drained from the protected layer can be significantly increased by increasing the flow resistance of the borehole bottom. Application of this method in the Wulan Coal Mine of the Shenhua Group significantly increased the flow of pure gas and the gas concentration （by factors of 1.8 and 2.0, respectively）, thus demonstrating the remarkable effects of this method.</description><identifier>ISSN: 2095-8293</identifier><identifier>EISSN: 2198-7823</identifier><identifier>DOI: 10.1007/s40789-015-0064-3</identifier><language>eng</language><publisher>Beijing: China Coal Society</publisher><subject>Boreholes ; Coal mines ; Coal mining ; Energy ; Energy conservation ; Flow ; Flow resistance ; Fossil Fuels (incl. Carbon Capture) ; Geotechnical Engineering & Applied Earth Sciences ; Mineral Resources ; Research Article ; 保护层 ; 卸压瓦斯 ; 地表钻孔 ; 工业应用 ; 气体浓度 ; 煤层 ; 能量守恒定律 ; 质量</subject><ispartof>International journal of coal science & technology, 2015-03, Vol.2 (1), p.46-51</ispartof><rights>The Author(s) 2015</rights><rights>The Author(s) 2015. This work is published under https://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3013-b4425d2d23f3992d96c6eb53006274efb6ac49b6bef69b05ecc66177c87cb9113</citedby><cites>FETCH-LOGICAL-c3013-b4425d2d23f3992d96c6eb53006274efb6ac49b6bef69b05ecc66177c87cb9113</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Uhttp://image.cqvip.com/vip1000/qk/84499A/84499A.jpg</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s40789-015-0064-3$$EPDF$$P50$$Gspringer$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://doi.org/10.1007/s40789-015-0064-3$$EHTML$$P50$$Gspringer$$Hfree_for_read</linktohtml><link.rule.ids>314,776,780,860,27901,27902,41096,42165,51551</link.rule.ids></links><search><creatorcontrib>Liu, Yingke</creatorcontrib><creatorcontrib>Zhou, Fubao</creatorcontrib><creatorcontrib>Wang, Jianlong</creatorcontrib><creatorcontrib>Liu, Jun</creatorcontrib><title>Approach to increasing the quality of pressure-relieved gas drained from protected coal seam using surface borehole and its industrial application</title><title>International journal of coal science & technology</title><addtitle>Int J Coal Sci Technol</addtitle><addtitle>International Journal of Coal Science ＆ Technology</addtitle><description>During mining of lower protective coal seam, a surface borehole can efficiently extract not only the pressure-relieved gas from the protected layer, but also the gas from the mining layer gob. If the distance between the borehole and gob is too large, the quantity of gas drained from the protected layer decreases substantially. To solve this problem, a mathematical model for extracting pressure-relieved gas from a protected coal seam using a surface borehole was established, based on the radial gas flow theory and law of conservation of energy. The key factors influencing the quantity of gas and the drainage flow network using a surface borehole were presented. The results show that the quantity of pressure-relieved gas drained from the protected layer can be significantly increased by increasing the flow resistance of the borehole bottom. Application of this method in the Wulan Coal Mine of the Shenhua Group significantly increased the flow of pure gas and the gas concentration （by factors of 1.8 and 2.0, respectively）, thus demonstrating the remarkable effects of this method.</description><subject>Boreholes</subject><subject>Coal mines</subject><subject>Coal mining</subject><subject>Energy</subject><subject>Energy conservation</subject><subject>Flow</subject><subject>Flow resistance</subject><subject>Fossil Fuels (incl. Carbon Capture)</subject><subject>Geotechnical Engineering & Applied Earth Sciences</subject><subject>Mineral Resources</subject><subject>Research Article</subject><subject>保护层</subject><subject>卸压瓦斯</subject><subject>地表钻孔</subject><subject>工业应用</subject><subject>气体浓度</subject><subject>煤层</subject><subject>能量守恒定律</subject><subject>质量</subject><issn>2095-8293</issn><issn>2198-7823</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><sourceid>C6C</sourceid><sourceid>BENPR</sourceid><recordid>eNp9kMtKAzEUhgdRsGgfwF3QdTS3yUyWpXgDwY2uQyZzpk2ZTqZJRuhr-MSmVnTn6pwD_-XwFcUVJbeUkOouClLVChNaYkKkwPykmDGqalzVjJ_mnagS10zx82Ie44YQQoVigopZ8bkYx-CNXaPkkRtsABPdsEJpDWg3md6lPfIdGgPEOAXAAXoHH9CilYmoDcYNee-C32aJT2BTPq03PYpgtmj6zsrGzlhAjQ-w9j0gM7TIpZj72imm4LLcjGPvrEnOD5fFWWf6CPOfeVG8P9y_LZ_wy-vj83Lxgi0nlONGCFa2rGW840qxVkkroSl5JsAqAV0jjRWqkQ10UjWkBGulpFVl68o2ilJ-Udwcc_Pnuwli0hs_hSFX6syGZ6Jc8KyiR5UNPsYAnR6D25qw15ToA319pK8zfX2grw8edvTErB1WEP6S_zNd_xSt_bDaZd9vk5RlqSiXgn8BjcSVmA</recordid><startdate>20150301</startdate><enddate>20150301</enddate><creator>Liu, Yingke</creator><creator>Zhou, Fubao</creator><creator>Wang, Jianlong</creator><creator>Liu, Jun</creator><general>China Coal Society</general><general>Springer Nature B.V</general><scope>2RA</scope><scope>92L</scope><scope>CQIGP</scope><scope>W92</scope><scope>~WA</scope><scope>C6C</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>BKSAR</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>PCBAR</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope></search><sort><creationdate>20150301</creationdate><title>Approach to increasing the quality of pressure-relieved gas drained from protected coal seam using surface borehole and its industrial application</title><author>Liu, Yingke ; Zhou, Fubao ; Wang, Jianlong ; Liu, Jun</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3013-b4425d2d23f3992d96c6eb53006274efb6ac49b6bef69b05ecc66177c87cb9113</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Boreholes</topic><topic>Coal mines</topic><topic>Coal mining</topic><topic>Energy</topic><topic>Energy conservation</topic><topic>Flow</topic><topic>Flow resistance</topic><topic>Fossil Fuels (incl. Carbon Capture)</topic><topic>Geotechnical Engineering & Applied Earth Sciences</topic><topic>Mineral Resources</topic><topic>Research Article</topic><topic>保护层</topic><topic>卸压瓦斯</topic><topic>地表钻孔</topic><topic>工业应用</topic><topic>气体浓度</topic><topic>煤层</topic><topic>能量守恒定律</topic><topic>质量</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Liu, Yingke</creatorcontrib><creatorcontrib>Zhou, Fubao</creatorcontrib><creatorcontrib>Wang, Jianlong</creatorcontrib><creatorcontrib>Liu, Jun</creatorcontrib><collection>中文科技期刊数据库</collection><collection>中文科技期刊数据库-CALIS站点</collection><collection>中文科技期刊数据库-7.0平台</collection><collection>中文科技期刊数据库-工程技术</collection><collection>中文科技期刊数据库- 镜像站点</collection><collection>Springer Nature OA Free Journals</collection><collection>CrossRef</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest One Sustainability</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Natural Science Collection</collection><collection>Earth, Atmospheric & Aquatic Science Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>Earth, Atmospheric & Aquatic Science Database</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><jtitle>International journal of coal science & technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Liu, Yingke</au><au>Zhou, Fubao</au><au>Wang, Jianlong</au><au>Liu, Jun</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Approach to increasing the quality of pressure-relieved gas drained from protected coal seam using surface borehole and its industrial application</atitle><jtitle>International journal of coal science & technology</jtitle><stitle>Int J Coal Sci Technol</stitle><addtitle>International Journal of Coal Science ＆ Technology</addtitle><date>2015-03-01</date><risdate>2015</risdate><volume>2</volume><issue>1</issue><spage>46</spage><epage>51</epage><pages>46-51</pages><issn>2095-8293</issn><eissn>2198-7823</eissn><abstract>During mining of lower protective coal seam, a surface borehole can efficiently extract not only the pressure-relieved gas from the protected layer, but also the gas from the mining layer gob. If the distance between the borehole and gob is too large, the quantity of gas drained from the protected layer decreases substantially. To solve this problem, a mathematical model for extracting pressure-relieved gas from a protected coal seam using a surface borehole was established, based on the radial gas flow theory and law of conservation of energy. The key factors influencing the quantity of gas and the drainage flow network using a surface borehole were presented. The results show that the quantity of pressure-relieved gas drained from the protected layer can be significantly increased by increasing the flow resistance of the borehole bottom. Application of this method in the Wulan Coal Mine of the Shenhua Group significantly increased the flow of pure gas and the gas concentration （by factors of 1.8 and 2.0, respectively）, thus demonstrating the remarkable effects of this method.</abstract><cop>Beijing</cop><pub>China Coal Society</pub><doi>10.1007/s40789-015-0064-3</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 2095-8293 |
| ispartof | International journal of coal science & technology, 2015-03, Vol.2 (1), p.46-51 |
| issn | 2095-8293 2198-7823 |
| language | eng |
| recordid | cdi_proquest_journals_2413789343 |
| source | DOAJ Directory of Open Access Journals; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Springer Nature OA Free Journals |
| subjects | Boreholes Coal mines Coal mining Energy Energy conservation Flow Flow resistance Fossil Fuels (incl. Carbon Capture) Geotechnical Engineering & Applied Earth Sciences Mineral Resources Research Article 保护层 卸压瓦斯 地表钻孔 工业应用 气体浓度 煤层 能量守恒定律 质量 |
| title | Approach to increasing the quality of pressure-relieved gas drained from protected coal seam using surface borehole and its industrial application |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-01T21%3A29%3A53IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Approach%20to%20increasing%20the%20quality%20of%20pressure-relieved%20gas%20drained%20from%20protected%20coal%20seam%20using%20surface%20borehole%20and%20its%20industrial%20application&rft.jtitle=International%20journal%20of%20coal%20science%20&%20technology&rft.au=Liu,%20Yingke&rft.date=2015-03-01&rft.volume=2&rft.issue=1&rft.spage=46&rft.epage=51&rft.pages=46-51&rft.issn=2095-8293&rft.eissn=2198-7823&rft_id=info:doi/10.1007/s40789-015-0064-3&rft_dat=%3Cproquest_cross%3E2413789343%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2413789343&rft_id=info:pmid/&rft_cqvip_id=665591364&rfr_iscdi=true |