| 广东京村金矿大角度斜孔钻进工艺实践 |
| 投稿时间：2019-03-01 修订日期：2019-03-01 点此下载全文 |
| 引用本文：石磊.广东京村金矿大角度斜孔钻进工艺实践[J].钻探工程,2019,46(6):14-18.SHI Lei. High angle borehole drilling in Jingcun Gold Mine[J]. Drilling Engineering, 2019,46(6):14-18. |
| 摘要点击次数: 1083 |
| 全文下载次数: 555 |
|
|
| 中文摘要:根据广东省德庆县京村金矿地层、矿体特征，为达到找矿、控矿的目的，地质钻孔多设计为大角度斜孔，施工中存在着钻孔弯曲度超差的问题。通过收集汇总该矿区前期钻孔数据资料，总结了钻孔孔斜变化规律及特点，综合运用了初级定向钻进技术及“一基多孔”施工方法，施工效果好，钻孔质量优良，钻探效率大幅提高，施工成本显著降低。文章重点介绍了初级定向钻进设计及钻进过程中钻孔弯曲度控制的方法，针对施工中遇到的问题提出了解决方案，总结了大角度斜孔施工的几点体会和认识。 |
| 中文关键词:京村金矿 地质钻探 大角度斜孔 定向钻进 一基多孔 |
| |
| High angle borehole drilling in Jingcun Gold Mine |
|
|
| Abstract:The geological borehole is often designed as a large angle hole to achieve the purpose of prospecting and ore controlling according to the stratum and ore body characteristics of the Jingcun gold deposit in Deqing County, Guangdong Province; thus leading to excessive doglegs in drilling. The borehole deviation rule and characteristics were summarized through collecting and summarizing the early drilling data in the mining area, and primary directional drilling was applied together with “one mother hole with multiple laterals”, resulting in good effect with the excellent drilling quality, improved drilling efficiency, and significantly reduced drilling construction costs. The article focuses on the primary directional drilling design and the dogleg severity control during the drilling process. It proposes a solution to the problems encountered in the drilling, and some experiences and understandings of drilling of large angle holes are summarized. |
| keywords:Jingcun Gold Mine geological drilling large angle hole directional drilling one mother hole with multiple laterals |
| 查看全文 查看/发表评论 下载PDF阅读器 |
