COMBINED SEALING AND GRIPPING UNIT FOR RETRIEVABLE PACKERS

摘要

A wellbore packer and slip combination for production tubing and the like comprises a plurality of slip elements that are caged together around t he periphery of a cylindrical mandrel. An axially displaced actuator simultaneously engag es all of the elements to ramp one end of all elements against a casing wall. After th e one end of the slip and packer unit is set, further displacement of the actuator expands the other end of the elements against the casing wall. The packer and slip assembly may be retracted and recovered by a simultaneous lift and rotation of the tool string.