修井井下管柱是利用钻杆或油管将相应的封隔器井下分层工具和修井工具等联接在一起,以实现某种修井目的井下管柱。本文简要叙述了常用的修井井下管柱的分类及应用,主要有压裂管柱、酸化管柱、堵水管柱、试油管柱和处理井下事故的管柱。 Workover underground pipe string is the use of the drill pipe or tubing packer will be the appropriate layering tools and workover tools such as connected together to achieve a sort of workover downhole string. This article briefly describes the commonly used classification and application of downhole pipe string, including the fracturing column, acidification column, water plug column, test tubing string and underground pipe handling accident.