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东乘公麻冻土地层低温冲洗液研究与应用

丁付利, 段晓, 皮建伟. 2022. 东乘公麻冻土地层低温冲洗液研究与应用. 钻探工程, 49(1): 104-109. doi: 10.12143/j.ztgc.2022.01.014
引用本文: 丁付利, 段晓, 皮建伟. 2022. 东乘公麻冻土地层低温冲洗液研究与应用. 钻探工程, 49(1): 104-109. doi: 10.12143/j.ztgc.2022.01.014
DING Fuli, DUAN Xiao and PI Jianwei, . 2022. Research and application of low-temperature drilling fluid for permafrost strata in the Dongchenggongma area. DRILLING ENGINEERING, 49(1): 104-109. doi: 10.12143/j.ztgc.2022.01.014
Citation: DING Fuli, DUAN Xiao and PI Jianwei, . 2022. Research and application of low-temperature drilling fluid for permafrost strata in the Dongchenggongma area. DRILLING ENGINEERING, 49(1): 104-109. doi: 10.12143/j.ztgc.2022.01.014

东乘公麻冻土地层低温冲洗液研究与应用

  • 基金项目:

    中央财政项目“青海省都兰-同德-甘德地区金及多金属资源调查评价”(编号:1212011220665)

详细信息
    作者简介: 丁付利,男,汉族,1985年生,工程师,地质工程专业,硕士,长期从事钻探施工技术研究与管理工作,陕西省西安市长安区凤栖西路7号(710000),378266878@qq.com。
  • 中图分类号: P634.6

Research and application of low-temperature drilling fluid for permafrost strata in the Dongchenggongma area

  • 结合东乘公麻金矿区地层特性和高原冻土环境实际,钻进过程中存在冻土地层融化、孔壁膨胀崩塌、钻孔越打越浅、岩心采取困难、钻孔冻结等技术难题。通过对钻探施工设备、施工工艺和施工管理进行研究和分析,重点研究了低温冲洗液性能对钻进过程的影响。通过正交试验对冲洗液配方在-5 ℃条件下对比,优选出抗低温、散热系数小、粘度适中、滤失量低的最佳配方,有效解决了高原冻土地层钻进技术难题。在CZK031和CZK4821两个钻孔进行现场应用,冲洗液对孔壁保护较好,未发生孔壁坍塌掉块和孔内冻结事故,取得了较好的施工效果。低温冲洗液配方的研究应用,对其他地区高原冻土地层施工具有参考意义。
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出版历程
收稿日期:  2021-03-18
修回日期:  2021-06-13

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