松散破碎地层钻探施工技术研究与应用  

Research and application of drilling construction technology for loose and broken formations

作　　者：李振风 LI Zhenfeng(Hunan Provincial Institute of Mineral Resources Investigation,Chenzhou 423000,Hunan,China)

机构地区：[1]湖南省矿产资源调查所,湖南郴州423000

出　　处：《四川冶金》2024年第2期78-82,共5页Sichuan Metallurgy

摘　　要：广东省大宝山铜多金属矿床区域上位于南岭成矿带的中南部,矿区地质构造发育,岩石破碎、软硬互层多,钻孔结构复杂,易发生掉块、卡埋钻等事故。针对该矿区的施工难点,通过优化钻进工艺、合理钻具级配、以及采用低固相钻井液护壁技术等措施有效地解决了松散破碎地层施工中遇见的问题。同时,通过科学合理组织施工,制定切实可行的项目施工管理方案,得到较好的钻进效果,顺利地完成了本次钻探施工任务,取得了较好的经济和社会效益,对其他类似地层钻探施工具有一定的借鉴意义。The Dabaoshan copper polymetallic deposit in Guangdong Province is located in the central and southern part of the Nanling metallogenic belt,with a developed geological structure,broken rocks,many soft and hard in-terlayers,and complex borehole structure,which is prone to accidents such as block drop and stuck buried driling.In view of the construction difficulties in the mining area,the problems encountered in the construction of loose and broken formations were effectively solved by optimizing the drilling technology,reasonable drilling tool grading,and adopting low solid drilling fluid wall protection technology.At the same time,through the scientific and reason-able organization of construction,the formulation of a feasible project construction management plan,get a better drilling effect,successfully complete the drilling construction task,and achieve good economic and social benefits,which has a certain reference significance for other similar formation drilling construction.

关 键 词：钻进工艺 复杂地层 护壁堵漏 金刚石绳索取心 钻具级配 冲洗液 

分 类 号：P634[天文地球—地质矿产勘探]