| 聚龙小镇DZK1地热勘查孔钻探施工技术 |
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| 引用本文： | 张东方.聚龙小镇DZK1地热勘查孔钻探施工技术[J].探矿工程,2018,45(11):29-33. |
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| 作者姓名： | 张东方 |
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| 作者单位： | 福建省第四地质大队 |
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| 摘 要： | 地热勘查孔（探采结合孔）是在矿山钻探施工工艺的基础上进行的探索性施工。着重介绍了福建省泉州市聚龙小镇DZK1地热勘查孔在钻探施工过程中遇到的施工难题以及新技术、新工艺的应用。如大口径单管取心、空压机洗井和活塞洗井相结合的洗井方法、套管的隔级使用、深孔测试钻杆密闭性、深孔磨钻头、在涌水量大的地层钻进等。
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| 关 键 词： | 地热勘查 钻孔漏失 隔级下套管 |
| 收稿时间： | 2018/3/26 0:00:00 |
| 修稿时间： | 2018/7/20 0:00:00 |
Drilling and Construction Technique of DZK1 Geothermal Exploration Hole in Quanzhou |
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| ZHANG Dong-fang.Drilling and Construction Technique of DZK1 Geothermal Exploration Hole in Quanzhou[J].Exploration Engineering(Drilling & Tunneling),2018,45(11):29-33. |
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| Authors: | ZHANG Dong-fang |
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| Institution: | Fourth Geological Brigade of Fujian Province |
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| Abstract: | The geothermal exploration hole (combined hole of exploration and mining) is an exploratory construction on the basis of the mining construction technology. This paper mainly introduces the construction problems encountered in the drilling construction and the application of new technology and new process, such as large diameter single pipe coring, well washing by air compressor combined with piston, lowing casings by every other grade, drill pipe tightness test for every 50m since drilling depth of 800m, drill bit sharpening by putting stones into the borehole and drilling in large water inflow formation. |
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| Keywords: | geothermal exploration lost circulation lowering casings by every other grade |
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