| 梧桐庄矿大直径排水孔工程钻探施工技术 |
| 投稿时间：2008-12-02 修订日期：2009-04-20 点此下载全文 |
| 引用本文：和新,尹丽,吴云莺.梧桐庄矿大直径排水孔工程钻探施工技术[J].钻探工程,2009,36(5):33-35.HE Xin,YIN Li,WU Yun-ying. Drilling Construction Technology of Large Diameter Drainage Hole in Wutongzhuang Mine[J]. Drilling Engineering, 2009,36(5):33-35. |
| 摘要点击次数: 1141 |
| 全文下载次数: 960 |
|
|
| 中文摘要:介绍了梧桐庄矿区孔深646 m、终孔直径526 mm两口排水孔的钻探施工技术。该2口排水孔深度大，孔径大，垂直度要求高，地层软硬互层变化较大，易缩径，穿层钻进时易形成孔斜，施工难度大，通过采用先用小径钻进、后扩孔的施工方法，并采取合理的钻具组合和泥浆，制定有效的防斜技术措施等，顺利完成排水孔施工，施工质量满足设计要求。 |
| 中文关键词:大直径排水孔 钻探 垂直度 钻具组合 固井 |
| |
| Drilling Construction Technology of Large Diameter Drainage Hole in Wutongzhuang Mine |
|
|
| Abstract:The paper introduced the drilling construction technology of drainage holes in Wutongzhuang mine. The 2 holes were of great depth and large diameter in soft-hard alternant stratum, construction was difficult with diameter shrinking and slant borehole. Small-diameter drilling and post-reaming were adopted with reasonable drilling tool assembly, drilling mud and effective deviation preventing measures, and the drainage hole construction was successfully completed. |
| keywords:large diameter drainage hole drilling verticality drilling tool assembly well cementing |
| 查看全文 查看/发表评论 下载PDF阅读器 |
