| 全孔反循环中心取样钻进设备与试验研究 |
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| 引用本文： | 王茂森,殷琨,蒋荣庆. 全孔反循环中心取样钻进设备与试验研究[J]. 煤田地质与勘探, 2000, 28(5): 61-62 |
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| 作者姓名： | 王茂森 殷琨 蒋荣庆 |
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| 作者单位： | 长春科技大学探工研究所 130026 |
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| 摘 要： | 气动贯通式潜孔锤与双壁钻杆及专门研制的反循环钻头(获国家发明专利)配套使用,可实现反循环连续取心(样)钻进新工艺,连续获取的岩样采取率高,品质好,代表性强。经复杂地层金矿、铜矿等矿区使用,钻进效率比普通钻进方法提高3倍,成本降低为原成本的1/8~1/5,有效解决了复杂地层矿床勘探和取心钻进难题。
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| 关 键 词： | 贯通式潜孔锤 反循环钻头 双壁钻杆 连续采样 效益 |
| 收稿时间： | 1999-11-02 |
| 修稿时间： | 1999-11-02 |
A DESIGN FOR WHOLE HOLE REVERSE CIRCULATION DRILLING |
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| Wang Maosen,Yin Kun,Jiang Rongqing. A DESIGN FOR WHOLE HOLE REVERSE CIRCULATION DRILLING[J]. Coal Geology & Exploration, 2000, 28(5): 61-62 |
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| Authors: | Wang Maosen Yin Kun Jiang Rongqing |
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| Affiliation: | Changchun University of Science and Technology |
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| Abstract: | Air driven hollow DTH hammer is applied,along with a set of dual wall drilling pipe and a specially designed reverse circulation bit,to conduct continuous coring reverse circulation drilling.The core specimen acquired have some advantages,such as high coring recovery rate,good core quality and better representativeness.The tool was used for the exploration of gold and copper mine in complex geological environment.Drilling efficiency increased by 3 times comparing to the ordinary drilling tools.The cost of the drilling was reduced to 1/5 1/8 of the ordinary one's.The tool can be used for the ore exploration and mining in complex geological condition to derive cores. |
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| Keywords: | hollow DTH hammer reverse circulation bit dual drilling pipe continuous sampling benefit |
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