深井回收永久式封隔器,一直是钻完井作业的难点,到目前为止还没有一套完善的处理方式。本文结合渤海某油田回收哈里巴顿TWM永久式封隔器及底部射孔枪实例,介绍了切割、套铣、打捞全过程,并分析了其中难点及其解决措施,包括打捞工具选择、切割定位、套铣进尺确定及打捞管柱组合等方面,希望对今后此类井处理提供一定的借鉴。 Deep well recovery permanent packer has been the difficulty of drilling and completion operations, so far there is no set of sound treatment. In this paper, the whole process of cutting, sleeve milling and salvage is introduced according to the example of recovering Halibaton TWM permanent packer and the bottom perforating gun in an oilfield in Bohai Sea. The difficulties and solutions are also analyzed, including selection of fishing tools, cutting positioning, Sock milling footage determination and salvage string combination, etc., hoping to provide some reference for the future treatment of such wells.