| 空气潜孔锤在松散地层中的钻进试验 |
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| 引用本文： | 卢予北,王建华,陈莹,罗园,程存平,申云飞,杜朝波.空气潜孔锤在松散地层中的钻进试验[J].探矿工程,2014,41(7):9-11,27. |
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| 作者姓名： | 卢予北 王建华 陈莹 罗园 程存平 申云飞 杜朝波 |
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| 作者单位： | [1]河南省深部探矿工程技术研究中心,河南郑州450053; [2]河南省地热能开发利用有限公司,河南郑州450053; [3]河南省地矿局第二地质环境调查院,河南郑州450053; [4]中国地质科学院勘探技术研究所,河北廊坊065000 |
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| 基金项目： | 河南省“两权价款”地质科研项目“页岩气钻探技术研究”（2013-09） |
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| 摘 要： | 空气潜孔锤钻探工艺在基岩地区已是首选的一种技术。传统观念认为空气潜孔锤钻进工艺适用于坚硬岩石（硬、脆、碎地层），在松散地层中则需要常规泥浆回转钻进或冲击钻进。通过典型松散地层的试验证明：空气潜孔锤在松散覆盖地层中可以实现正常的钻进，并且具有效率高、成本低、劳动强度小等优点，在粘土和潮湿粘土地层中钻进效率最高可达87和72 m/h。为解决页岩气、地热、煤层气、地下水等能源资源勘探时上覆地层的开孔或一开钻进提供了行之有效的方法，同时，也解决了缺水地区或严重漏失地层钻井液用水困难和传统开孔或一开泥浆回转钻探工艺复杂等问题。
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| 关 键 词： | 空气潜孔锤 松散地层 钻进 |
| 收稿时间： | 2014/5/14 0:00:00 |
| 修稿时间： | 2014/5/15 0:00:00 |
Drilling Tests in Loose Formation with Air DTH Hammer |
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| LU Yu-bei,WANG Jian-hu,CHEN Ying,LUO Yuan,CHENG Cun-ping,SHEN Yun-fei and DU Zhao-bo.Drilling Tests in Loose Formation with Air DTH Hammer[J].Exploration Engineering(Drilling & Tunneling),2014,41(7):9-11,27. |
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| Authors: | LU Yu-bei WANG Jian-hu CHEN Ying LUO Yuan CHENG Cun-ping SHEN Yun-fei and DU Zhao-bo |
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| Institution: | LU Yu-bei, WANG Jian-hua, CHEN Ying, LUO Yuan, CHENG Cun-ping, SHEN Yun-fei, DU Zhao-bo( 1. Henan Engineering Research Center of Depth Explora- tion, Zhengzhou Henan 450053, China; 2. Henan Provincial Geothermal Energy Development ＆ Utilization Co. , Zheng- zhou Henan 450053, China; 3. No. 2 Institute of Geo-environment Survey of Henan, Zhengzhou Henan 450053, China; 4. The Institute of Exploration Techniques, CAGS, Langfang Hebei 065000, China) |
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| Abstract: | Air DTH hammer drilling is a preferred technology in bed rock area, which by tradition is suitable for hard rock drilling（in hard, brittle and broken formations）;while for loose formations, conventional mud rotary drilling or percussive drilling should be used.Based on the test on typical unconsolidated formation drilling, it is proved that normal drilling can al-so be realized in loose overburden layer by air DTH hammer with advantages of high efficiency, low cost and small labor in-tensity, the highest drilling efficiency is up to 87m/h and 72m/h in clay and moist clay drilling respectively.This result pro-vides an effective method to hole opening or the first spud section drilling for the exploration of shale gas, geothermal energy, coal seam gas and underground water in overlaying layers and solves the water shortage for drilling fluid in water scarce areas or serious leakage formations and avoids the difficulties in the complicated processes of conventional mud rotary drilling. |
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| Keywords: | air DTH hammer loose formation drilling |
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