| 局部扩径双翼扩孔钻头的研制 |
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| 引用本文： | 刘克林,张志罡,王晓琴.局部扩径双翼扩孔钻头的研制[J].探矿工程,2014,41(3):48-51. |
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| 作者姓名： | 刘克林 张志罡 王晓琴 |
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| 作者单位： | 河南省煤田地质局四队,河南平顶山467000 |
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| 摘 要： | 在研究应用于煤层气掏穴井的局部扩径扩孔钻头的基础上，成功研制PS-150/700D型局部扩径双翼扩孔钻头。介绍了新型扩孔钻头的结构、射流作用力计算、设计要点和主要技术参数。试验结果表明，该钻头结构合理，使用安全可靠，能满足煤层气掏穴井的施工需要。
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| 关 键 词： | 局部扩径 扩孔钻头 煤层气井 |
| 收稿时间： | 2013/6/4 0:00:00 |
| 修稿时间： | 2014/2/8 0:00:00 |
Development of Local Diameter Expansion Double Wings Reaming Bit |
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| LIU Ke-lin,ZHANG Zhi-gang and WANG Xiao-qin.Development of Local Diameter Expansion Double Wings Reaming Bit[J].Exploration Engineering(Drilling & Tunneling),2014,41(3):48-51. |
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| Authors: | LIU Ke-lin ZHANG Zhi-gang and WANG Xiao-qin |
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| Institution: | (The 4th Team, Coalfield Geology Bureau of Henan Province, Pingdingshan Henan 467000, China) |
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| Abstract: | Based on the research on local diameter expansion reaming bit for CBM well with local diameter expansion, PS-150/700D local diameter expansion double wings reaming bit is successfully developed.The paper introduces this new reaming bit about its structure, jet force calculation, design points and main technical parameters.The test results show that the drill bit is reasonable in structure, safe and reliable in use, can satisfy the construction need of CBM well with local diameter expansion. |
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| Keywords: | local diameter expansion reaming bit CBM well |
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