Apparatus for positioning a liner on a tubular member in a well bore with a retrievable pack off bushing therebetween

摘要

A method and apparatus for positioning and bonding a liner in a casing in a well bore wherein a pack off bushing is provided between the liner and the well string on which the liner is lowered into the well bore for discharge of a bonding agent through the well string and around the liner in the well bore. The seal or pack off bushing is constructed and arranged so that it may be retrieved after the positioning and bonding operations are completed along with the well string upon which the liner is initially lowered into the well bore.