四川平武银厂金矿勘探复杂地层钻进技术  

Drilling Technology of Complex Formation in Yinchang Gold Deposit Prospecting in Pingwu of Sichuan

作　　者：杨福全 龙海涛 YANG Fu-quan;LONG Hai-tao(Yunnan Metallurgical Resources Co.,Ltd.,Kunming Yunnan 650000,China)

机构地区：[1]云南冶金资源股份有限公司,云南昆明650000

出　　处：《探矿工程（岩土钻掘工程）》2018年第6期36-39,共4页Exploration Engineering:Rock & Soil Drilling and Tunneling

摘　　要：四川平武银厂金矿区钻探施工中遇到漏失、缩径、岩心破碎、易孔斜和钻孔事故频发等施工难题,施工难度极大。本文结合地层特点,通过采用绳索取心液动锤、高密度低失水泥浆体系、跟管钻进等工艺技术措施,提高了钻进效率和施工质量,大幅度减少了孔内事故的发生,为顺利完成钻孔施工任务奠定了坚实的基础。Leakage,diameter shrinkage,core breaking,easy hole deviation and frequent drilling accidents were encountered during the drilling construction process in Yinchang gold deposit prospecting in Pingwu of Sichuan,which made the construction very difficult.Based on the characteristics of the formation,by using wire-line coring hydraulic hammer,high density and low filtration mud fluid system,casing with drilling and some other technical measures,the drilling efficiency and construction quality are improved and downhole accidents are greatly reduced,which lays a solid foundation for the smooth drilling construction.

关 键 词：平武银厂金矿 复杂地层 绳索取心液动锤 高密度低失水泥浆 跟管钻进 

分 类 号：P634[天文地球—地质矿产勘探]