| 深厚漂卵石地层中超大直径钻井冲抓工艺的研究及应用 |
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| 引用本文： | 张宁,杨宗仁,袁洁,杨广,刘占军.深厚漂卵石地层中超大直径钻井冲抓工艺的研究及应用[J].探矿工程,2011,38(11):65-67. |
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| 作者姓名： | 张宁 杨宗仁 袁洁 杨广 刘占军 |
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| 作者单位： | [1]河北金汇岩土工程有限公司,河北石家庄050021 [2]河北省地质矿产勘查开发局,河北石家庄050021 |
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| 摘 要： | 介绍了在直径8.3 m、深度285 m钻井井筒内,应用冲抓锥抓取漂卵石进尺并与回转钻进工艺相结合,完成超大直径钻井的工艺技术。主要包括冲抓设备参数的选取、冲抓工艺及技术参数的确定等。
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| 关 键 词： | 漂卵石地层 超大直径钻井 钻井施工 冲抓工艺 |
| 收稿时间： | 2010/9/14 0:00:00 |
| 修稿时间： | 2011/10/15 0:00:00 |
Study on Impact Grab Ultra Large Diameter Drilling in Deep Gravel Boulder Formation and the Application |
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| ZHANG Ning,YANG Zong-ren,YUAN Jie,YANG Guang and LIU Zhan-jun.Study on Impact Grab Ultra Large Diameter Drilling in Deep Gravel Boulder Formation and the Application[J].Exploration Engineering(Drilling & Tunneling),2011,38(11):65-67. |
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| Authors: | ZHANG Ning YANG Zong-ren YUAN Jie YANG Guang and LIU Zhan-jun |
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| Institution: | 1.Hebei Jinhui Geo-engineering Co.,Ltd.,Shijiazhuang Hebei 050021,China;2.Hebei Provincial Bureau of Geo-exploration and Mineral Development,Shijiazhuang Hebei 050021,China) |
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| Abstract: | The paper presented the application of cone grab in grabbing gravel footage and combining with rotary drilling technology for ultra drilling in bored shaft with diameter of 8.3m and depth of 285m,and introduced the parameter selection for grabbing equipment,grabbing process and the determination of technical parameter. |
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| Keywords: | gravel boulder ultra large diameter drilling drilling construction grabbing process |
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