4/6/2025, 9:29:06 AM 星期日
复杂地层梳状定向长钻孔在区域瓦斯治理中的应用
CSTR:
作者:
作者单位:

中煤科工集团西安研究院有限公司,陕西 西安 710077

中图分类号:

P634.7;TD713


Application of comb directional long boreholes to regional gas control in complex formation
Author:
Affiliation:

Xi’an Research Institute, China Coal Technology and Engineering Group Corp., Xi’an Shaanxi 710077, China

  • 摘要
  • | |
  • 访问统计
  • |
  • 参考文献 [15]
  • |
  • 相似文献
  • | | |
  • 文章评论
    摘要:

    针对贵州毕节地区某煤矿瓦斯治理预抽时钻孔抽采距离短、成孔性差、孔内事故频发等难题,提出在某煤矿采用底板穿层梳状定向长钻孔的技术方法。通过优化钻孔布孔形式、布孔层位和分支孔施工工艺,保证钻孔主孔成孔深度和分支孔见遇煤层率。试验期间,施工钻孔主孔深度均大于600 m,分支孔见遇煤层率达到60%。钻孔成孔明显得到改善,单孔最大瓦斯抽采浓度达到85%,最大瓦斯抽采纯量达到2.5 m3/min,同时节省了施工成本,为毕节矿区瓦斯治理提供了新的方案。

    Abstract:

    In view of the problems with gas drainage, such as short main holes, poor hole-making, frequent accidents in a coal mine of Bijie, Guizhou, a technique of using cross-floor comb-like directional long boreholes to control gas was put forward. The drilling pattern, drilling horizons and branch hole drilling processes were optimized to ensure the hole depth of the main hole and the coal intersection rate of the branch holes. During the trial, the drilling depth of the main holes was more than 600m, with the coal intersection rate of the branch holes up to 60%. The drilling hole completion quality has been obviously improved with the maximum gas drainage concentration per single hole up to 78%, the maximum gas extraction net volume 2.33m3/min, and less construction costs. It provides a new approach to gas control in the mining area of the Bijie city.

    参考文献
    [1] 杨宁.贵州省煤炭资源的开发利用与环境保护[J].地球,2012(9):37,43.YANG Ning. Development and utilization of coal resources and environmental protection in Guizhou province[J]. The Earth, 2012(9):37,43.
    [2] 程亮.薄及中厚软煤层水力压裂煤岩损伤机理及瓦斯运移规律[D].重庆:重庆大学,2016.CHENG Liang. Coal and rock damage mechanism and methane migration law in thin and medium thick soft coal seams by hydraulic fracturing[D]. Chongqing: Chongqing University, 2016.
    [3] 周军.贵州煤炭资源开采及小煤矿安全生产的探讨[J].煤矿现代化,2011(1):134-136.ZHOU Jun. Discussion on coal resources exploitation and small coal mine security roduce in Guizhou province[J]. Coal Mine Modernization, 2011(1):134-136.
    [4] 钟德洋,刘勇,康向涛,等. 2007—2015年贵州煤矿瓦斯事故分析与防治建议[J].煤炭工程,2016,48(11):69-72.ZHONG Deyang, LIU Yong, KANG Xiangtao, et al. Analysis and the prevention advice of gas accidents of Guizhou coal mines 2007-2015[J]. Coal Engineering, 2016,48(11):69-72.
    [5] 江成玉,苏恒瑜.地质因素对黔西青龙煤矿煤与瓦斯突出的影响[J].煤矿现代化,2008(2):30-31.JANG Chengyu, SU Hengyu. The impact of geological factors for the gas outburst of the Qinglong Mine Coal of Qianxi county[J]. Coal Mine Modernization, 2008(2):30-31.
    [6] 赵建国.底抽巷梳状钻孔代替保护层的瓦斯治理工艺技术研究[J].中国煤炭,2014(6):121-123.ZHAO Jianguo. Research on gas control technology by comb-like boreholes in floor drainage roadway instead of protective layer[J]. China Coal, 2014(6):121-123.
    [7] 石浩,张杰,何乐.高位定向长钻孔技术在桃园矿采空区瓦斯治理应用[J].探矿工程(岩土钻掘工程),2018,45(7):37-40.SHI Hao, ZHANG Jie, HE Le. Application of high position and long directional drilling technology for gas control in goaf of Taoyuan Coal Mine[J]. Exploration Engineering (Rock & Soil Drilling and Tunneling), 2018,45(7):37-40.
    [8] 姚宁平,张杰,李泉新,等.煤矿井下定向钻孔轨迹设计与控制技术[J].煤炭科学技术,2013,41(3):7-11.YAO Ningping, ZHANG Jie, LI Quanxin, et al. Tracing design and control technology of directional drilling borehole in underground mine[J]. Coal Science and Technology, 2013,41(3):7-11.
    [9] 冯达晖.煤矿井下分段水力压裂梳状定向长钻孔钻进技术研究[J].探矿工程(岩土钻掘工程),2018,45(5):8-12.FENG Dahui. Research on long hole hydraulic drilling with comb shaped directional drilling technology in coal mine[J]. Exploration Engineering (Rock & Soil Drilling and Tunneling), 2018,45(5):8-12.
    [10] 姚宁平,张杰,张国亮,等.晋城矿区井下梳状钻孔瓦斯抽采技术体系[J].煤炭科学技术,2015,43(2):88-91.YAO Ningping, ZHANG Jie, ZHANG Guoliang, et al. System of gas drainage technology of comb-like directional drilling in Jincheng Mining Area[J]. Coal Science and Technology, 2015,43(2):88-91.
    [11] 李泉新,石智军,史海岐.煤矿井下定向钻进工艺技术的应用[J].煤田地质与勘探,2014(2):85-88.LI Quanxin, SHI Zhijun, SHI Haiqi. The application of directional drilling technology in coal mine[J]. Coal Geology & Exploration, 2014(2):85-88.
    [12] 姚宁平,姚亚峰,方鹏,等.我国煤矿坑道钻探装备技术进展与展望[J].钻探工程,2021,48(1):81-87.YAO Ningping, YAO Yafeng, FANG Peng, et al. Advances and outlook of coal mine tunnel drilling equipment and technology[J]. Drilling Engineering, 2021,48(1):81-87.
    [13] 赵建国.底抽巷梳状钻孔代替保护层的瓦斯治理工艺技术研究[J].中国煤炭,2014,40(6):121-123,126.ZHAO Jianguo. Research on gas control technology by comb-like boreholes in floor drainage roadway instead of prote[J]. China Coal, 2014,40(6):121-123,126.
    [14] 管强盛.底板梳状定向钻孔技术理论与实践[J].煤矿安全,2019(2):72-75.GUAN Qiangsheng. Theory and practice of floor comb type directional drilling technology[J]. Safety in Coal Mines, 2019(2):72-75.
    [15] 王建强,张杰,杜利猛.赵庄矿松软煤层梳状钻孔瓦斯抽采应用研究[J].煤矿安全,2016,47(10):133-136.WANG Jianqiang, ZHANG Jie, DU Limeng. Application research of gas drainage by comb-like drilling in soft coal seam of Zhaozhuang Coal Mine[J]. Safety in Coal Mines, 2016,47(10):133-136.
    相似文献
    引证文献
    网友评论
    网友评论
    分享到微博
    发 布
引用本文

曹建明.复杂地层梳状定向长钻孔在区域瓦斯治理中的应用[J].钻探工程,2021,48(12):20-25.
CAO Jianming. Application of comb directional long boreholes to regional gas control in complex formation[J]. Drilling Engineering, 2021,48(12):20-25.

复制
分享
文章指标
  • 点击次数:695
  • 下载次数: 875
  • HTML阅读次数: 669
  • 引用次数: 0
历史
  • 收稿日期:2021-02-23
  • 最后修改日期:2021-05-08
  • 录用日期:2021-06-25
  • 在线发布日期: 2021-12-31
  • 出版日期: 2021-12-10
文章二维码