| 正循环潜孔锤实现反循环钻进双壁钻具配套研制 |
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| 引用本文： | 李艳丽,王振志,李晓晖,程林,满国祥,孔令沪,王克虎,杨宏伟.正循环潜孔锤实现反循环钻进双壁钻具配套研制[J].探矿工程,2018,45(2):52-55. |
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| 作者姓名： | 李艳丽 王振志 李晓晖 程林 满国祥 孔令沪 王克虎 杨宏伟 |
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| 作者单位： | 河北省地矿局国土资源勘查中心石探厂,河北省地矿局国土资源勘查中心石探厂,河北省地矿局国土资源勘查中心石探厂,河北省地矿局国土资源勘查中心石探厂,河北省地矿局国土资源勘查中心石探厂,河北省地矿局国土资源勘查中心石探厂,河北省地矿局国土资源勘查中心石探厂,河北省地矿局国土资源勘查中心石探厂 |
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| 摘 要： | 空气潜孔锤反循环钻进因其具有较强的携屑能力、上返冲洗液不冲刷孔壁、钻进速度快等优势，是施工大口径钻孔和抢险救援孔的首选方案。但由于反循环潜孔锤技术还不够成熟，制造成本高，使用寿命短，因此开展了用正循环潜孔锤实现反循环钻进工艺方法的研究。研制了这种工艺配套的钻具，包括大口径双壁钻杆、双壁稳定器、阻风环、正反接头等。研制的钻具在山东平邑石膏矿坍塌事故处理中得到了实践验证，完全能够达到预期目标，能够为大口径潜孔锤反循环钻进工艺推广提供硬件支撑。
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| 关 键 词： | 正循环潜孔锤 双壁钻具配套 大口径反循环钻进 |
| 收稿时间： | 2017/8/29 0:00:00 |
| 修稿时间： | 2017/8/29 0:00:00 |
Development of Double-wall Drilling Tools Matching for Reverse Circulation Drilling by Positive Circulation DTH |
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| LI Yan-li,WANG Zhen-zhi,LI Xiao-hui,CHENG Lin,MAN Guo-xiang,KONG Ling-hu,WANG Ke-hu and YANG Hong-wei.Development of Double-wall Drilling Tools Matching for Reverse Circulation Drilling by Positive Circulation DTH[J].Exploration Engineering(Drilling & Tunneling),2018,45(2):52-55. |
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| Authors: | LI Yan-li WANG Zhen-zhi LI Xiao-hui CHENG Lin MAN Guo-xiang KONG Ling-hu WANG Ke-hu and YANG Hong-wei |
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| Institution: | The Center of Land and Recourse Exploration, Hebei Bureau of Geology and Mineral Exploration,The Center of Land and Recourse Exploration, Hebei Bureau of Geology and Mineral Exploration,The Center of Land and Recourse Exploration, Hebei Bureau of Geology and Mineral Exploration,The Center of Land and Recourse Exploration, Hebei Bureau of Geology and Mineral Exploration,The Center of Land and Recourse Exploration, Hebei Bureau of Geology and Mineral Exploration,The Center of Land and Recourse Exploration, Hebei Bureau of Geology and Mineral Exploration,The Center of Land and Recourse Exploration, Hebei Bureau of Geology and Mineral Exploration,The Center of Land and Recourse Exploration, Hebei Bureau of Geology and Mineral Exploration |
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| Abstract: | Air DTH hammer reverse circulation drilling technology is often taken as the first scheme in large diameter boreholes and rescue holes construction because of its advantages of rapid drilling and strong cuttings carrying capacity without borehole wall being washed out. However because reverse circulation DTH technology is not enough mature with high manufacturing cost and short service life, the research on reverse circulation drilling technique with normal circulation DTH hammer is carried out and the process matching drilling tools are developed, including the improvement of the large diameter double-wall drill rod and the development of double-wall stabilizer, wind resistance ring and positive & negative joints. The practice of collapse accident treatment in Pingyi gypsum mine shows that the developed drilling tools can reach the expected goal and provide hardware support for the promotion of air reverse circulation drilling technology. |
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| Keywords: | positive circulation DTH hammer double-wall drilling tool matching large diameter reverse circulation drilling |
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