| 新型高压旋转水射流扩孔钻具的研制及应用 |
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| 引用本文： | 高飞,郭永旺,高标,杨希培. 新型高压旋转水射流扩孔钻具的研制及应用[J]. 中州煤炭, 2011, 0(9) |
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| 作者姓名： | 高飞 郭永旺 高标 杨希培 |
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| 作者单位： | 神华乌海能源有限责任公司黄白茨有限责任公司;中国地质大学(北京)工程技术学院; |
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| 摘 要： | 为了有效预防煤与瓦斯突出,根据掘进工作面主要防突措施的优缺点、防治煤与瓦斯突出的技术原理及水力化局部防突措施的机理,研制了回转式高压旋转接头及扩孔喷头,利用钻机带动钻杆进行高压水扩孔。结果表明:新型高压旋转水射流扩孔钻具可以有效提高煤体的力学强度,降低煤体应力集中,提高低透气性煤层的瓦斯抽放效果,促进瓦斯的释放,增强防止煤和瓦斯突出的能力。
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| 关 键 词： | 瓦斯抽放 钻孔 扩孔 扩孔喷头 高压旋转接头 |
Development and Application of New High-pressure Rotary Water Jet Reaming Drilling Tool |
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| Gao Fei,Guo Yongwang,Gao Biao,Yang Xipei. Development and Application of New High-pressure Rotary Water Jet Reaming Drilling Tool[J]. Zhongzhou Coal, 2011, 0(9) |
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| Authors: | Gao Fei Guo Yongwang Gao Biao Yang Xipei |
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| Affiliation: | Gao Fei1,Guo Yongwang1,Gao Biao2,Yang Xipei1(1.Huangbaici Limited Liability Company,Shenhua Wuhai Energy Limited Liability Company,Wuhai 016033,China,2.School of Engineering & Technology,China University of Geosciences,Beijing 100083,China) |
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| Abstract: | To prevent coal and gas outburst effectively,according to the advantages and disadvantages of major anti-conflict measures on heading face,the technical principles of coal and gas outburst,hydraulic mechanism of local anti-conflict measures,high-pressure rotary joints and rotary reaming head were developed,and drill rod driven by drilling machine to reaming the boreholes by high-pressure water.The results shows that:the new high-pressure rotary water jet reaming drilling tools effectively increase the mecha... |
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| Keywords: | gas drainage drilling reaming reaming nozzle high-pressure rotary joints |
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