| 若尔盖铀矿田金刚石钻头的研究与应用 |
| 投稿时间：2016-08-08 修订日期：2016-08-08 点此下载全文 |
| 引用本文：李俊萍,吴金生,胡立,等.若尔盖铀矿田金刚石钻头的研究与应用[J].钻探工程,2017,44(1):79-83.LI Jun-ping,WU Jin-sheng,HU Li, DENG Wei〖MZ)〗〖WTBZ〗 (Institute of Exploration Technology, CAGS, Chengdu Sichuan 61173,et al. Research and Application of Diamond Bits in Zoige Uranium Ore[J]. Drilling Engineering, 2017,44(1):79-83. |
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| 基金项目:中国地质调查局地质调查项目“高原生态环境脆弱区综合钻探技术应用示范（四川省若尔盖碳硅泥岩型铀矿地质调查）”（编号：12120113017200） |
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| 中文摘要:若尔盖铀矿区是全国地质找矿“358”重点整装勘查区，是我国硬岩型保有储量最大的铀资源大基地。该地区处于高海拔地区，生态环境脆弱，可施工的周期短，地层构造发育，换层频繁，造斜能力强，裂隙发育，岩石脆、碎，造成钻头磨损严重、偏磨、钻进时效低、寿命短等问题。针对该地层特点，在前期试验和岩石性质测试分析的基础上，研制了不同结构的金刚石钻头，并在5个孔位中进行了生产试验。试验证明，过改进后的金刚石钻头在钻进时效与平均寿命方面均有显著提高，与2014年度的钻进数据相比，2015年度钻头的平均钻进时效提升了33.7%，钻头平均寿命提高了132%，达到了试验的预期目标 |
| 中文关键词:金刚石钻头 复杂地层 钻探 若尔盖铀矿 |
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| Research and Application of Diamond Bits in Zoige Uranium Ore |
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| Abstract:As the largest hard rock type of recoverable uranium deposits base in China, Zoige uranium ore is the key ready exploration area for “358”goal in national geological prospecting. But it is in high altitude area with fragile ecological environment, strata structure development, short construction season, frequent layer changes, strong deviating force, fissures development and brittle and broken rocks, which cause a series of problems of serious bit wear or eccentric wear, low drilling efficiency and short bit service life. According to the characteristics of the formation and based on the preliminary test and the analysis on rock property, diamond bits of different structures are developed and are tested in 5 drilling holes. The tests show that the improved diamond bits have significant increase in drilling efficiency and average bit service life. Compared with the drilling data of 2014, the average drilling efficiency and bit service life are increased by 33.7% and 132% in 2015 respectively; the expected target of experiment is reached. |
| keywords:diamond bit complex formation drilling Zoige uranium |
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