| 小口径膨胀波纹管技术在若尔盖铀矿区的应用 |
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| 引用本文： | 李晓晨,陈晓君,杨宏胜,黎波.小口径膨胀波纹管技术在若尔盖铀矿区的应用[J].探矿工程,2018,45(12):20-23. |
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| 作者姓名： | 李晓晨 陈晓君 杨宏胜 黎波 |
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| 作者单位： | 四川省金核地质勘查工程有限公司,中国地质调查局勘探技术研究所,四川省金核地质勘查工程有限公司,四川省金核地质勘查工程有限公司 |
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| 基金项目： | 国家重点研发计划资助“多金属矿岩心钻探关键技术装备联合研发及示范”（编号：2016YFE0202200） |
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| 摘 要： | 地层漏失一直是钻探施工的技术难题，寻找有效、快速解决不同工况下漏失问题技术方法一直是若尔盖铀矿区钻探技术工作的重点。在ZK4-5钻孔施工中钻遇大漏失地层，钻具多次空放，水泥堵漏收效甚微，在钻孔结构受限制的情况下，采用了小口径膨胀波纹管技术，应对大漏失地层取得了较好的效果，解决了该孔空放漏失段的漏失问题，为矿区解决大漏失等复杂地层技术难题提供了可靠的技术支持。
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| 关 键 词： | 小口径钻探 小口径膨胀波纹管 钻具放空 大漏失 堵漏 若尔盖铀矿区 |
| 收稿时间： | 2018/7/31 0:00:00 |
| 修稿时间： | 2018/8/31 0:00:00 |
Application of Slim Expandable Corrugated Tubing in Ruoergai Uranium Mines |
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| LI Xiao-chen,CHEN Xiao-jun,YANG Hong-sheng and LI Bo.Application of Slim Expandable Corrugated Tubing in Ruoergai Uranium Mines[J].Exploration Engineering(Drilling & Tunneling),2018,45(12):20-23. |
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| Authors: | LI Xiao-chen CHEN Xiao-jun YANG Hong-sheng and LI Bo |
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| Institution: | Sichuan Province Jinhe Geological Exploration Engineering Co., Ltd.,The Institute of Exploration Techniques, CAGS,Sichuan Province Jinhe Geological Exploration Engineering Co., Ltd.,Sichuan Province Jinhe Geological Exploration Engineering Co., Ltd. |
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| Abstract: | Circulation loss has been a technical challenge in drilling work. It is always a key point to find effective and quick solutions to circulation loss in drilling in the Ruoergai uranium mining area under different working conditions. Large circulation loss was encountered in drilling the ZK4-5 borehole with gravity falls of the drilling string for several times, and cement plugging was done with little effect. Under the condition of the limited borehole diameter, the slim corrugated tubing was adopted to deal with the large circulation loss formation successfully, providing reliable technical support for sealing large circulation loss formation. |
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| Keywords: | slim drilling slim expandable corrugated tubing free fall of drilling string large circulation loss plugging ruoergai uranium mines |
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