贵州松桃高地超大型锰矿深孔钻探工程难点与对策研究  

Research on Difficulties and Countermeasures of Deep-hole Drilling Engineering in Super-large Manganese Mine in Gaodi of Songtao,Guizhou Province

作　　者：班金彭 宋继伟[2] 沈红钱 彭坤 BAN Jin-peng;SONG Ji-wei;SHEN Hong-qian;PENG Kun(No.115 Geological Party,Guizhou Bureau of Geology and Mineral Exploration and Development,Guiyang 551400,Guizhou,China;No.112 Geological Party,Guizhou Bureau of Geology and Mineral Exploration and Development,Anshun 561000,Guizhou,China;No.103 Geological Party,Guizhou Bureau of Geology and Mineral Exploration and Development,Tongren 554300,Guizhou,China)

机构地区：[1]贵州省地矿局115地质大队,贵州贵阳551400 [2]贵州省地矿局112地质大队,贵州安顺561000 [3]贵州省地矿局103地质大队,贵州铜仁554300

出　　处：《贵州地质》2024年第2期192-201,共10页Guizhou Geology

基　　金：贵州省科技计划项目“贵州省岩溶地区复杂地层岩心钻探关键技术难题综合研究”(黔科合支撑〔2023〕一般173);贵州省地质矿产勘查开发局地质科研项目“贵州省优势矿产资源勘查岩心钻探关键技术难题综合研究”(黔地矿科合〔2022〕4号);“贵州省锰矿勘查深部钻探技术研究”(黔地矿科合〔2019〕6号)联合资助。

摘　　要：随着地质矿产勘查不断深入,深孔钻探通常会遇到多套复杂地层,由于在勘探阶段对钻孔质量要求较高,施工难度剧增。本文针对贵州省松桃县高地锰矿勘探阶段钻探施工出现的难题,通过采取“一基两孔”布孔和施工技术、水泥封孔护壁技术、钻孔结构优化防垮塌埋钻技术、多措并举防孔斜技术、钻井液循环困难处理技术、钻杆脱扣处理措施、套管埋钻处理技术等技术的联合使用,在勘查区后续钻孔施工过程中取得了理想的效果,研究总结形成了一套较为完整的锰矿勘探阶段深孔钻探技术体系,为今后类似工程提供借鉴作用。With the deepening of geological and mineral exploration,deep-hole drilling often encounters many sets of complex formations,which require high drilling quality and increase the difficulty of construction.In view of the difficult problems of drilling construction in the exploration stage of the Gaodi Manganese deposit in Songtao county of Guizhou province,through the joint application of‘One-base-two-hole’hole arrangement and construction technology,cement sealing hole wall protection technology,drilling hole structure optimization anti-collapse burying drilling technology,multimeasures anti-deviation technology,drilling fluid circulation difficult treatment technology,drill pipe tripping treatment technology,casing burying drilling treatment technology.A set of deep-hole drilling technology system at exploration stage has been formed,which can be used for reference for similar projects in the future.

关 键 词：勘探阶段 深孔 一基多孔 封孔护壁技术 设备配置 钻孔结构 

分 类 号：P618.32[天文地球—矿床学] P624[天文地球—地质学] P621