| 对深孔大口径取心钻探工艺的一些认识——以WFSD-2号孔0～897.66 m段施工为例 |
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| 引用本文： | 秦沛.对深孔大口径取心钻探工艺的一些认识——以WFSD-2号孔0～897.66 m段施工为例[J].探矿工程(岩土钻掘工程),2011,38(11):7-13. |
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| 作者姓名： | 秦沛 |
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| 作者单位： | 北京市地质工程设计研究院,北京密云,101500 |
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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”课题资助 |
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| 摘 要： | 深孔大口径取心钻探,钻孔口径大、地层复杂、钻孔结构复杂、深孔段效率低,钻进工艺尚不成熟,钻探工程难度较大。结合WFSD-2号孔0～897.66 m段施工情况,介绍了施工中存在的主要问题及采取的主要技术措施;对各种施工工艺、技术方法进行了对比分析,提出了建议。
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| 关 键 词： | 深孔 大口径 取心钻探 汶川地震断裂带 科学钻探 |
Some Knowledge of Coring Drilling Technology in Large Diameter Deep Hole |
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| QIN Pei.Some Knowledge of Coring Drilling Technology in Large Diameter Deep Hole[J].Exploration Engineering:Rock & Soil Drilling and Tunneling,2011,38(11):7-13. |
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| Authors: | QIN Pei |
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| Affiliation: | Beijing Geological Engineering Design Institute |
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| Abstract: | Drilling is difficult for coring in large diameter deep hole because of large diameter,complex formation and borehole structure with immature drilling technology.According to the construction of the section of 0～897.66m of hole WFSD-2,the paper introduced the main problems and technical measures in construction.Comparative analysis was made on different construction technologies and technical methods,and some suggestions were put forward to the similar project. |
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| Keywords: | deep hole large diameter coring drilling technology Wenchuan seismic fracture zone scientific drilling |
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