插管悬挂式气举反循环钻具在地热井施工中的应用及改进  

Application and Improvement of Intubation Suspended Air Lift Reverse Circulation Drilling Tool System in Geothermal Well Construction

作　　者：程林[1] 满国祥 孔令沪 崔杰 王士昭[1] 解少朋 Cheng Lin;Man Guoxiang;Kong Linghu;Cui Jie;Wang Shizhao;Xie Shaopeng(Shijiazhuang Exploration Machinery Plant,Land and Mineral Resources Exploration Center,Hebei Bureau of Land and Mineral Resources,Shijiazhuang,Hebei 050081)

机构地区：[1]河北省地矿局国土资源勘查中心石探厂,石家庄050081

出　　处：《中国煤炭地质》2021年第4期79-81,共3页Coal Geology of China

摘　　要：插管悬挂式气举反循环钻具是一种新型结构的气举反循环钻具。它不同于双壁式气举反循环钻具,而是通过插入一根独立的插管建立压缩空气通道,具有结构简单、使用方便、耐用性好、通用性强的特点。以工程实例为基础,对插管悬挂式气举反循环钻具在地热井施工中的钻具配置、专用工具及应用注意事项进行了说明,针对在地热井施工中出现的问题及改进方法进行了详细研究。The intubation suspended air lift reverse circulation drilling tool system is a new kind structure air lift reverse circulation drilling tool system.Different from dual-wall air lift reverse circulation drilling tool system,it has inserted an independent tube to form compressed air channel.It has advantages of simple structure,easy to use,durable and universal.Based on project cases have carried out explanation for intubation suspended air lift reverse circulation drilling tool system configuration in geothermal well construction,special tools and application considerations;and then carried out detailed study on issues in geothermal well construction and improvement methods.

关 键 词：插管悬挂式 气举反循环 地热井施工 

分 类 号：P634[天文地球—地质矿产勘探]