| 邓鹏,宋继伟,许杰.贵州省赫章县菜园子铅锌矿钻探技术[J].贵州地质,2025,42(1):92-99 |
| 贵州省赫章县菜园子铅锌矿钻探技术 |
| Drilling Technology for Caiyuanzi Lead Zinc Deposit in Hezhang County of Guizhou Province |
| 投稿时间：2024-07-15 |
| DOI： |
| 中文关键词: 铅锌矿 破碎地层 岩溶发育 跟管钻进 加长套管 多级钻孔结构 水泥细砂封堵 |
| 英文关键词:Lead-zinc mine Fractured stratum Karst development Follow the pipe drilling Extended casing Multi level drilling structure Cement fine sand sealing |
| 基金项目: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)；“地质勘查岩心钻探新型式钻机引进及改良设计研究”(黔地矿科合〔2023〕6号) |
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| 中文摘要: |
| 贵州省赫章县菜园子铅锌矿勘查实现了深部找矿突破，为新时代西部大开发闯新路和在乡村振兴上开新局提供了资源保障，但钻探施工过程中存在破碎地层卡钻、岩溶发育、漏失严重、部分地层岩石坚硬、易发套管事故等诸多难点。该项目钻探施工实践中，结合地质特征分析，针对施工难点研究形成了优化钻孔结构，大口径套管及水泥细砂辅以早强剂封隔封堵破碎地层，长钻具穿越溶洞、加工多层长套管封隔溶洞等系列措施，取得了良好的效果。本次研究可为该矿区及周边矿区后续实施的钻探施工提供借鉴。 |
| 英文摘要: |
| The exploration of Caiyuanzi lead-zinc mine in Hezhang county，Guizhou province has achieved a breakthrough in deep exploration，providing resource guarantee for the new era of western development and opening up a new chapter in rural revitalizationHowever，there are many difficulties in the drilling construction process，such as fractured strata sticking，karst development，serious leakage，hard rocks in some strata and susceptibility to casing accidentsIn the drilling construction practice of this project，based on the analysis of geological characteristics，an optimized drilling structure was developed to address the construction difficul-tiesLarge diameter casing and cement fine sand were combined with early strength agents to seal and block fractured layerLong drilling tools were used to pass through caves，and multiple layers of long casing were processed to seal caves，achieving good resultsThis study can provide reference for the subsequent drilling construction in the mining area and surrounding mining areas |
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