| 汶川地震断裂带科学钻探项目WFSD-3-P孔钻探施工概况 |
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| 引用本文： | 赵远刚,樊腊生,杨明奇. 汶川地震断裂带科学钻探项目WFSD-3-P孔钻探施工概况[J]. 探矿工程(岩土钻掘工程), 2012, 39(9): 18-21 |
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| 作者姓名： | 赵远刚 樊腊生 杨明奇 |
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| 作者单位： | 1. 中国地质科学院探矿工艺研究所,四川成都610081
2. 四川省地矿局四○三地质队,四川峨眉山614200 |
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| 基金项目： | 科技部科技支撑计划专项“汶川地震断裂带科学钻探（WFSD）”项目之“科学钻探与科学测井”课题 |
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| 摘 要： | 主要介绍了汶川地震断裂带科学钻探项目WFSD-3-P孔的地层情况、施工过程、钻井液技术、事故的处理与预防技术。在钻探施工中,采取了高密度低失水泥浆体系和反复扫孔、起钻中途回灌泥浆的措施,解决了断层泥缩径、岩层破碎、钻孔坍塌扩径的技术难题,并取得了原状性完好的岩心。
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| 关 键 词： | 汶川地震 地震断裂带 科学钻探 钻探施工 先导孔 钻井液 事故处理与预防 |
| 收稿时间： | 2012-08-08 |
| 修稿时间： | 2012-08-08 |
Situation of WFSD-3-P Drilling Operation of Wenchuan Earthquake Fault Scientific Drilling Project |
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| ZHAO Yuan-gang,FAN La-sheng and YANG Ming-qi. Situation of WFSD-3-P Drilling Operation of Wenchuan Earthquake Fault Scientific Drilling Project[J]. Exploration Engineering （Rock & Soil Drilling and Tunneling）, 2012, 39(9): 18-21 |
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| Authors: | ZHAO Yuan-gang FAN La-sheng YANG Ming-qi |
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| Affiliation: | The Institute of Exploration Technology, CAGS,The Institute of Exploration Technology, CAGS,03 Geological Brigade, Sichuan Exploration and Development Bureau of Geology and Mineral Resources |
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| Abstract: | This article introduces the drilling process of WFSD-3-P of Wenchuan earthquake fault scientific drilling (WFSD) project. A series of technical measures of high-density and low-filtration drilling fluid system, repeated reaming and mud recharging in pipe trip were taken to overcome drilling difficulties, such as borehole shrinkage in fault gouge formation, rock breaking and collapsed borehole enlarging. As the result, high quality undisturbed cores have been obtained and rich drilling experiences in earthquake fault have been accumulated. |
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| Keywords: | Wenchuan earthquake earthquake fault scientific drilling drilling construction pilot hole drilling fluid accident treatment and prevention |
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