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煤矿井下3 000 m顺煤层定向钻孔钻进关键技术

石智军 董书宁 杨俊哲 许超 郝世俊 李泉新 陈殿赋 姚克 刘建林 田东庄

石智军, 董书宁, 杨俊哲, 许超, 郝世俊, 李泉新, 陈殿赋, 姚克, 刘建林, 田东庄. 煤矿井下3 000 m顺煤层定向钻孔钻进关键技术[J]. 煤田地质与勘探, 2019, 47(6): 1-7. doi: 10.3969/j.issn.1001-1986.2019.06.001
引用本文: 石智军, 董书宁, 杨俊哲, 许超, 郝世俊, 李泉新, 陈殿赋, 姚克, 刘建林, 田东庄. 煤矿井下3 000 m顺煤层定向钻孔钻进关键技术[J]. 煤田地质与勘探, 2019, 47(6): 1-7. doi: 10.3969/j.issn.1001-1986.2019.06.001
SHI Zhijun, DONG Shuning, YANG Junzhe, XU Chao, HAO Shijun, LI Quanxin, CHEN Dianfu, YAO Ke, LIU Jianlin, TIAN Dongzhuang. Key technology of drilling in-seam directional borehole of 3 000 m in underground coal mine[J]. COAL GEOLOGY & EXPLORATION, 2019, 47(6): 1-7. doi: 10.3969/j.issn.1001-1986.2019.06.001
Citation: SHI Zhijun, DONG Shuning, YANG Junzhe, XU Chao, HAO Shijun, LI Quanxin, CHEN Dianfu, YAO Ke, LIU Jianlin, TIAN Dongzhuang. Key technology of drilling in-seam directional borehole of 3 000 m in underground coal mine[J]. COAL GEOLOGY & EXPLORATION, 2019, 47(6): 1-7. doi: 10.3969/j.issn.1001-1986.2019.06.001

煤矿井下3 000 m顺煤层定向钻孔钻进关键技术

doi: 10.3969/j.issn.1001-1986.2019.06.001
基金项目: 

国家科技重大专项任务(2016ZX05045-003-001);中煤科工集团西安研究院有限公司科技创新基金项目(2019XAYZD01)

详细信息
    第一作者:

    石智军,1955年生,男,陕西富平人,研究员,博士生导师,从事煤矿区煤层气钻井、煤矿井下坑道钻探技术及地质工程与安全技术研究、推广工作.E-mail:shizhijun@cctegxian.com

  • 中图分类号: P634

Key technology of drilling in-seam directional borehole of 3 000 m in underground coal mine

Funds: 

National Science and Technology Major Project(2016ZX05045-003-001)

  • 摘要: 保德煤矿大盘区工作面采前瓦斯超前治理模式要求井下定向长钻孔能够沿煤层钻进3 000 m以上,针对现有技术装备在超长定向钻孔施工中存在滑动钻进困难、进水水路压耗大、有线随钻测量信号传输距离受限、冲洗液无法循环利用等问题,开发了煤矿井下基于螺杆马达水力加压和超长钻具正反扭转给进的滑动钻进减阻工艺、基于回转钻进倾角控制和侧钻分支的复合钻进轨迹控制技术,设计了低压耗进水水路系统、泥浆脉冲无线随钻测量系统和冲洗液净化循环系统,结合保德煤矿生产需要,完成了主孔深度3 353 m、孔径120 mm的顺煤层超长贯通定向孔。钻进效果表明:滑动钻进减阻工艺有效降低了给进力,显著提高了深孔滑动定向钻进能力;基于复合钻进的轨迹控制技术,保证了钻孔轨迹沿煤层定向延伸,并提高了钻进能力和钻进效率;泥浆脉冲无线随钻测量信号长距离传输稳定可靠,克服了有线随钻测量信号传输的局限性;井下冲洗液净化循环系统净化效果良好,实现了井下定向钻进冲洗液循环利用。研究成果对支撑煤矿大区域瓦斯超前治理、以孔代巷工程、水害防治及地质勘探等技术进步具有重要意义。

     

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出版历程
  • 收稿日期:  2019-11-11
  • 发布日期:  2019-12-25

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