| 广西向阳坪铀矿床钻探施工技术及改进措施 |
| 投稿时间：2021-01-20 修订日期：2021-03-01 点此下载全文 |
| 引用本文：刘俊辉,陈跃,李晓东,等.广西向阳坪铀矿床钻探施工技术及改进措施[J].钻探工程,2021,48(8):59-67.LIU Junhui,CHEN Yue,LI Xiaodong,et al. Drilling technology and improvement measures for the Xiangyangping uranium deposit in Guangxi[J]. Drilling Engineering, 2021,48(8):59-67. |
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| 基金项目:中国核工业地质局铀矿地质项目“广西资源县苗儿山地区铀矿资源调查评价与勘查”（编号：201917） |
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| 中文摘要:广西向阳坪铀矿床岩性以花岗岩为主，研磨性强，部分地层复杂，构造裂隙密集发育，岩石破碎，绿泥石化、高岭土化强烈，钻探施工困难。通过采用金刚石绳索取心钻探技术和施工工艺，并针对钻进中遇到的问题，引进了便携式全液压钻机，采用了成膜防塌无固相冲洗液体系及延迟交联凝胶堵漏工艺，优选了环齿式孕镶金刚石钻头，并采取了严格的预防和控制防斜措施，解决了钻进效率低、孔壁不稳定、金刚石钻头寿命短及钻孔弯曲等一系列问题。生产实践证明，该施工技术和工艺具有钻进效率高、岩（矿）心采取率高、劳动强度低等优点，可为花岗岩及复杂岩层钻进施工提供借鉴。 |
| 中文关键词:钻探技术 绳索取心 护壁堵漏 复杂地层 孔斜 向阳坪铀矿床 |
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| Drilling technology and improvement measures for the Xiangyangping uranium deposit in Guangxi |
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| Abstract:The lithology of the Xiangyangping uranium deposit in Guangxi is mainly granite with strong abrasiveness， and some formation is complex with densely developed structural fissures， broken rocks， strong chloritization and kaolinization， leading to drilling difficulty. With the use of diamond wire line core drilling technology and process， continuous improvement measures have been taken to solve the problems encountered in drilling， such as low drilling efficiency， unstable hole wall， short service life of the diamond bit and bending of the drilling hole. Field practice has proved that the drilling technology and process has the advantages of high drilling efficiency， high core recovery and low labor intensity， which can accumulate valuable experience for drilling of granite and complex strata. |
| keywords:drilling technology wire-line coring wall protection and plugging complex strata hole deviation Xiangyangping uranium deposit |
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