文献类型：期刊文献

中文题名：井筒揭煤区域的地面瓦斯抽采防突技术研究

英文题名：Study on gas outburst prevention technology with surface gas drainage for seam opening area in mine shaft

作者：曹佐勇 徐佑林 王恩元 杜宏 张东亮 罗荣彬

第一作者：曹佐勇

机构：[1]中国矿业大学安全工程学院;[2]贵州煤矿安全监察局;[3]贵州理工学院矿业工程学院;[4]重庆能源(贵州)煤电有限公司;[5]中煤科工集团西安研究院有限公司;[6]普安县工业贸易和科学技术局

第一机构：中国矿业大学安全工程学院,江苏徐州221116

年份：2017

卷号：45

期号：3

起止页码：73-77

中文期刊名：煤炭科学技术

外文期刊名：Coal Science and Technology

收录：CSTPCD;;北大核心:【北大核心2014】；

基金：国家自然科学基金资助项目(51574231);教育部科学技术研究资助项目(113031A);江苏高校优势学科建设工程资助项目(PAPD);贵州省自然科学技术基金资助项目(黔科合基础[2016]1068号)

语种：中文

中文关键词：瓦斯抽采井;煤与瓦斯突出;井筒揭煤;数值计算

外文关键词：gas drainage well; coal and gas outburst; seam opening in mine shaft; numerical calculation

摘要：为保障新建突出矿井揭煤安全,提高地面瓦斯抽采井的抽采消突效果,对官寨煤矿瓦斯抽采井井型选择、瓦斯抽采工艺和技术、抽采效果预测等方面开展研究。结果表明:在地质构造复杂地区进行地面瓦斯抽采时,由于断层发育、煤层赋存不稳定,不宜施工水平井,采用垂直井和定向井更具有针对性和适用性;对具有突出危险性的煤层20 m范围进行射孔,并采用"泵送桥塞分段压裂"进行水力压裂改造,压裂完成后,对改造煤层进行合层抽采,抽采效果较好。工程实践表明,采用地面瓦斯抽采井进行瓦斯抽采能有效降低煤与瓦斯突出危险性,保障井筒安全施工。
In order to ensure a safety seam opening in a new mine with the coal outburst and to improve the gas drainage and outburst elim- ination effect of the surface gas drainage well, a study was conducted on the selection of the gas drainage well, the gas drainage technique and technology, the gas drainage effect prediction and other aspects in Guanzhai Mine. The results showed that when the surface gas drain- age was conducted in the complicated geological structure area, due to the fault development and the unstable seam deposition, a horizontal gas drainage well was not suitably constructed and a vertical well and directional well would be pertinence and suitability. A perforation should be conducted within 20 m of the seam with outburst danger. A pumping bridge plug sectional fracturing was applied to the hydraulic fracturing reconstruction. When the fracturing completed, seam combined drainage was applied to the reconstructed seam and the drainage effect was excellent. The engineering practices showed that the surface gas drainage well applied to the mine gas drainage could effectively reduce the danger of the coal and gas outburst and could ensure the safety construction in the mine shaft.