Downhole tool and method for use of the same

摘要

A downhole tool (38) comprises a housing (42) having a fluid passageway (84), a mandrel (44) having an interior volume (50), the mandrel (44) being slidably disposed within the housing (42), and the mandrel (44) having a plurality of axial positions relative to the housing (42). The mandrel (44) is slidably operated responsive to the fluid pressure within the interior volume (50) such that the mandrel (44) cycles through the plurality of positions. A retractor sleeve (64) is operably associated with the housing (42) and the mandrel (44) for engaging the mandrel (44) and slidably urging the mandrel (44) relative to the housing (42). The retractor sleeve (64) is slidably operated responsive to the fluid pressure within the interior volume (50). A seal assembly (72) is slidably disposed around the housing (42), the seal assembly (72) including a floating piston, the housing (42) and the floating piston defining a chamber (84) therebetween. The chamber (84) is in communication with the fluid passageway (84) of the housing (42) such that the fluid pressure within the interior volume (50) enters the chamber (84) and slidably urges the seal assembly (72) to stretch the seal assembly (72). <IMAGE> <IMAGE>