Apparatus for installing a liner within a well bore
AssigneeDresser Industries, Inc.
InventorsHenry W. Blackwell, Clifford L. Talley, Rodger D. Lacy
Life of this patent
Estimating the term…
Abstract
A packer setting tool, a packer assembly and an attached liner assembly are lowered into a well bore at a desired depth to fix the liner therein. Cement is pumped down a tubing string, through the packer, the lining, check valves and forced upwardly in the annulus of the well bore. The pumped cement is followed by a non-setting liquid to clear the internal tubular structure. The packer assembly is then set in the wet cement of the annulus to provide an additional fluid seal in the well bore. The packer setting tool is released and the cement is allowed to harden and fix the linear and the packer assembly within the well bore.
Claims3
Apparatus for installing a liner in a well bore, comprising:
- a packer assembly adapted for expansion within the well bore to seal the well bore;
- a swivel connected to packer assembly;
- a well bore liner attached to said packer assembly by said swivel to permit rotation of a portion of said packer assembly without rotating said liner;
- a packer setting assembly for setting the packer within the well bore and adapted for separation from the packer assembly;
- and
- a central conduit extending through and sealed to said apparatus below said packer assembly, and through which a hardening agent is conducted for cementing the liner within the well bore.
Dependencies are inferred from the claim text.