Patent ID: 8286711
Filing Date: 2012-10-16
Classification: E21B

Abstract:
1. A running tool for setting a packoff of a well pipe hanger, the running tool comprising: an elongated stem having an axial passage; an inner body substantially surrounding and connected to the stem such that rotation of the stem causes the stem to translate axially relative to the inner body; a piston connected to the stem such that the piston and the stem rotate and translate in unison, the piston substantially surrounding portions of the stem and the inner body; at least one slot positioned in and extending axially along a length of the outer surface of the inner body, the at least one slot extending radially inward through the outer surface of the inner body; and at least one pin carried by the piston and adapted to move radially inward and engage the at least one slot when the piston moves axially relative to the inner body to a set position to thereby set a packoff.