松散地层井管解卡装置研究与应用  

Research and Application of the Casing Stuck Releasing Device in Loose Strata

作　　者：张文生[1] 朱恒银[1] 周勇前[1] 

机构地区：[1]安徽省地质矿产勘查局313地质队,安徽六安237013

出　　处：《探矿工程（岩土钻掘工程）》2016年第6期72-74,80,共4页Exploration Engineering:Rock & Soil Drilling and Tunneling

基　　金：安徽省重点科技攻关项目"深部矿体勘探钻探技术方法及设备研究"(编号:09010301015)

摘　　要：第四系松散地层钻进,一般采用套管保护井壁,施工结束后,需将套管拔出。但由于套管易被管外卡附物挤实,难以提拔。针对这一施工难题,研制出一种松散地层井管解卡装置,可将管外卡附物松动,解卡套管,从而将其拔出。该装置在多个钻孔中应用,均取得了理想效果。Casing is commonly used for wall protection in quaternary loose strata drilling and pulled out after completing construction. But it is easily to be stuck by attachments from the outside,pulling out is difficult. A casing stuck releasing device was developed to loose the outside wedged attachments for casing unfreezing and pulling out. This device has been used in boreholes with desired effect.

关 键 词：松散地层 钻探 套管 解卡装置 

分 类 号：P634.8[天文地球—地质矿产勘探]