| FGC－15型大直径单头潜孔锤钻具系统研制 |
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| 引用本文： | 蒋荣庆,殷琨,王茂森.FGC－15型大直径单头潜孔锤钻具系统研制[J].探矿工程,1995(5):17-19,47. |
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| 作者姓名： | 蒋荣庆 殷琨 王茂森 |
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| 作者单位： | 长春地质学院,长春地质学院,长春地质学院 |
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| 摘 要： | 大直径单头潜孔锤与三通道气水龙头、主动钻杆、三通道钻杆、加重导正器配套，可实现大直径潜孔锤碎岩钻进、泵吸反循环排渣、泥浆护壁、压气闭路循环等相结合的先进钻进工艺，是解决大直径硬质基岩及卵砾石钻进的有效机具。文中介绍了钻具研制过程及设计内容。
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| 关 键 词： | 大直径 单头潜孔锤 三通道钻具 液体反循环 |
Development of FGC-15 Single Headed Large Diameter DTH Drilling System |
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| JIANG Rong-qing,YING Kun and WANG Mao-shen.Development of FGC-15 Single Headed Large Diameter DTH Drilling System[J].Exploration Engineering(Drilling & Tunneling),1995(5):17-19,47. |
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| Authors: | JIANG Rong-qing YING Kun and WANG Mao-shen |
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| Abstract: | Complete with triple air/water swivel,kelly bar,triple drillpipe,heavy centralizer,etc,,the singleheaded large diameter DTH hammer can be used to perform advanced drilling technique which combines DTHrock drilling,cuttings removal with reverse circulation by pump suction,hole wall protection with mud and pres-surized air circulation in a closed loop.It is an effective tool to tackle large diameter hard rock and boulderdrilling problems,Development and design of the tool are described. |
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| Keywords: | single headed large diameter DTH hammer triple drilling tool fluid reverse circulation pres-surized air circulation in a closed loop |
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