湘南3000 m科学深钻孔内事故处理及对策
作者:
作者单位:

1.山东省第三地质矿产勘查院,山东 烟台 264004;2.山东省地矿局钻探工程技术研究中心,山东 烟台 264004;3.湖南省矿产资源调查所,湖南 郴州 423000;4.山东省地质矿产勘查开发局第二水文地质工程地质大队(山东省鲁北地质工程勘察院),山东 德州 253072;5.山东省地热清洁能源探测开发与回灌工程技术研究中心,山东 德州 253072

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中图分类号:

P634.8

基金项目:

国家重点研发计划“深地资源勘查开采重点专项”之“钦杭成矿带湘南段铜锡多金属矿产深部探测技术示范”(编号:2018YFC0603905);山东省地矿局局控科技创新项目“3000m超深科学钻探关键技术研发应用”(编号:KY202102)、山东省地矿局2022年度科技攻关项目“深孔地质岩心钻孔轨迹控制技术研发及应用”(编号:KY202205)


Down-hole incident treatment and prevention for the 3000m scientific deep borehole in southern Hunan
Author:
Affiliation:

1.Shandong No.3 Exploration Institute of Geology and Mineral Resources,Yantai Shandong 264004, China;2.Drilling Engineering Technology Research Center of Shandong Provincial Bureau of Geology & Mineral Resources, Yantai Shandong 264004, China;3.Investigation of Mineral Resources of Hunan Province, Chenzhou Hunan 423000, China;4.The Second Team of Hydrogeology and Engineering Geology, Shandong Provincial Bureau of Geology & Mineral Resources (Shandong Provincial Lubei Geo-engineering Exploration Institute), Dezhou Shandong 253072, China;5.Shandong Engineering Technology Research Center for Geothermal Clean Energy Exploration and Reinjection,Dezhou Shandong 253072, China

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    摘要:

    湘南3000 m科学深钻为湖南首个3000 m地质岩心钻探特深孔,位于复杂褶皱转折带,钻遇了粘土缩径、全孔漏失、水敏性坍塌缩径和垂直节理发育坍塌等多种复杂地层,发生多次孔内事故。针对卡钻和塌孔等主要孔内事故,优化钻孔结构、冲洗液体系和钻具组合,采用侧钻绕障、循环捞砂、成膜冲洗液护壁和水泥浆护壁等多种技术措施,有效应对施工中的各种难题。终孔孔深3008.93 m,平均岩心采取率98.16%,实现了预期目标,为该区深部矿产成矿理论研究及资源勘查,提供了合格的地质钻孔和实物岩心资料。

    Abstract:

    The 3000m scientific deep borehole in southern Hunan is the first 3000m geological core drilling extra-deep hole in Hunan province. It is located in the transition zone of complex folds, and many complex formations, such as borehole shrinkage in clay, total hole leakage, water-sensitive collapse shrinkage and vertical joint development collapse, have been drilled, resulting in many down-hole incidents. In view of the main down-hole incidents such as bit sticking and hole collapse, the drilling structure, drilling fluid system and drill assembly were optimized, and various technical measures were adopted to effectively deal with various difficulties in drilling, such as sidetracking, circulating sand bailing, wall protection with film forming drilling fluid and wall protection with cement slurry. The final hole depth is 3008.93m, and the average core recovery rate is 98.16%, which has achieved the expected goal. Qualified geological boreholes and physical core data are provided for the theoretical study of deep mineral mineralization and resource exploration in this area.

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引用本文

翟育峰,赵辉,王鲁朝,等.湘南3000 m科学深钻孔内事故处理及对策[J].钻探工程,2023,50(4):32-40.
ZHAI Yufeng, ZHAO Hui, WANG Luzhao, et al. Down-hole incident treatment and prevention for the 3000m scientific deep borehole in southern Hunan[J]. Drilling Engineering, 2023,50(4):32-40.

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  • 收稿日期:2022-08-17
  • 最后修改日期:2022-11-16
  • 录用日期:2022-11-18
  • 在线发布日期: 2023-07-20
  • 出版日期: 2023-07-10