| 91单动三重半合管钻具的研制与应用 |
| 投稿时间：2017-05-17 修订日期：2017-05-17 点此下载全文 |
| 引用本文：叶兰肃,苗晓晓,王建兴,等.91单动三重半合管钻具的研制与应用[J].钻探工程,2017,44(7):56-61.YE Lan-su,MIAO Xiao-xiao,WANG Jian-xing,et al. Development of 91 Single-action Triple Coupling Pipe Core Drilling Tools and Its Application[J]. Drilling Engineering, 2017,44(7):56-61. |
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| 中文摘要:为了提高松软复杂地层岩矿心采取率和岩矿心的质量，弥补普通双管钻具取心功能的不足，特别研制了91单动三重半合管钻具。介绍了钻具的结构、工作原理、组装、维护保养及在3个不同矿区5个钻孔的野外生产应用情况。应用结果表明，该钻具适宜松散地层钻进，岩矿心采取率达到了100%，同时防止了岩矿心被外界扰动，保持了岩矿心的原状性，提高了岩矿心的质量并利于岩矿心后期的运输与储藏。 |
| 中文关键词:单动三重半合管钻具 半合管 自锁结构 护心管 箍紧装置 岩矿心采取率 |
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| Development of 91 Single-action Triple Coupling Pipe Core Drilling Tools and Its Application |
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| Abstract:In order to improve the core recovery and the quality in complex soft strata to compensate the functions of common double-pipe drilling tools, 91 single-action triple coupling pipe drilling tool was particularly developed. This paper introduces the drilling tool about its structure, working principle, assembly, maintenance and the field application in 5 boreholes of 3 different mining areas. The application results show that this drilling tool is suitable for loose formation drilling with core recovery up to 100% and with no core disturbance. The cores are kept being undisturbed, the improved cores quality is benefited for post transportation and storage. |
| keywords:single-action triple coupling pipe drilling tool coupling pipe self locking structure core protecting pipe core protecting pipe fixing ring core recovery |
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