湘西金矿复杂地层大口径充填孔定向钻进技术
投稿时间:2020-03-24  修订日期:2020-04-13  点此下载全文
引用本文:伍新民,易振兴,吴俊贤,宋会娟.湘西金矿复杂地层大口径充填孔定向钻进技术[J].探矿工程(岩土钻掘工程),2020,47(6):26-29.
WU Xinmin,YI Zhenxing,WU Junxian,SONG Huijuan. Directional drilling technique for a large diameter filling hole in complicated formation in Xiangxi Gold Mine[J]. Exploration Engineering (Rock & Soil Drilling and Tunneling), 2020,47(6):26-29.
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作者单位E-mail
伍新民 湖南省有色地质勘查局工程地质总队湖南 长沙 410007 2373047311@qq.com 
易振兴 湖南省有色地质勘查局一总队湖南 郴州 423000  
吴俊贤 湖南省有色地质勘查局一总队湖南 郴州 423000  
宋会娟 湖南省有色地质勘查局工程地质总队湖南 长沙 410007  
中文摘要:根据湘西金矿深厚陡倾角地层的特点,采用传统防斜方法(如满眼组合防斜技术、钟摆组合防斜技术)不能保证钻孔垂直度,首次使用随钻测斜仪配合螺杆定向钻进先施工引导孔,再用气动潜孔锤冲击回转钻进快速完成大口径充填孔扩孔,取得了较好的效果。采用螺杆能较好地实现定向钻进,钻孔轨迹偏斜位移能被控制在8.67 m范围内。
中文关键词:充填孔  螺杆钻  定向钻进  随钻测斜  气动潜孔锤
 
Directional drilling technique for a large diameter filling hole in complicated formation in Xiangxi Gold Mine
Abstract:In view of the deep and high dip strata in Xiangxi Gold Mine, where the traditional deviation prevention methods, such as the packed hole drilling string, the pendulum drilling string, cannot guarantee the borehole verticality , the mud motor was used with MWD for the first time to drill a pilot hole, and then pneumatic DTH drilling to quickly ream it to the large diameter filling borehole, achieving good results. The mud motor can provide better directional drilling with the deviation controlled within 8.67m.
keywords:filling hole  mud motor  directional drilling  measure while drilling  pneumatic DTH hammer
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