| 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,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]四川省地矿局四0三地质队,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： | 2012/8/8 0:00:00 |
| 修稿时间： | 2012/8/8 0:00:00 |
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(Drilling & Tunneling),2012,39(9):18-21. |
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| Authors: | ZHAO Yuan-gang FAN La-sheng and YANG Ming-qi |
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| Institution: | 2 ( 1. The Institute of Exploration Technology, CAGS, Chengdu Sichuan 610081, China; 2. 403 Geological Brigade, Sichuan Exploration and Development Bureau of Geology and Mineral Re- sources, Emeishan Sichuan 614200, China) |
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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 for- mation, 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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