| 地表近水平孔绳索取心工艺钻探实践 |
| 投稿时间：2015-10-20 修订日期：2015-12-11 点此下载全文 |
| 引用本文：李占锋.地表近水平孔绳索取心工艺钻探实践[J].钻探工程,2016,43(1):48-50.LI Zhan-feng. Drilling Practice of Wire-line Core Drilling in Quasi-horizontal Hole[J]. Drilling Engineering, 2016,43(1):48-50. |
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| 中文摘要:针对近水平孔地表岩心钻探施工项目的相关技术要求，利用现有的CS1000P6L型地表岩心钻机和常用的绳索取心钻具，设计和改进了绳索取心内管总成的投放与打捞装置，实现了地表岩心钻孔倾角接近零度的情况下普通绳索取心工艺的正常工作。与普通的提钻取心相比，大幅提高了工作效率，节省了购置特定的钻杆、绳索取心钻具及打捞器具等费用。经改进的输送装置结构简单、性能可靠、成本低廉，操作简单易行。经过野外生产实践验证，该装置实现了预期的目的和效果，达到了地质要求，积累并丰富了地表近水平孔岩心钻探施工的经验。 |
| 中文关键词:钻探 近水平孔 绳索取心 岩心钻机 |
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| Drilling Practice of Wire-line Core Drilling in Quasi-horizontal Hole |
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| Abstract:According to the related technical requirements on the core drilling in quasi-horizontal hole construction and by using of the existing CS 1000P6L core drill and common wire-line coring tools, the setting and fishing advices of inner pipe assembly were designed and improved for regular operation of ordinary wire-line core drilling technology under the condition of core drilling dip close to zero. Comparing with the effect received by the commonly used trip-round coring, the working efficiency was greatly improved with purchase cost saving of special drill rod, wire-line drilling tools and fishing appliance. The improved conveying device has the advantages of simple structure, reliable performance, low cost and easy operation. It is proved in field production practice that the geological requirements are met with expected purpose and effect, the experience is accumulated for the core drilling construction in quasi-horizontal hole. |
| keywords:quasi-horizontal hole wire-line coring core drill |
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