The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 18, 1989

Filed:

Apr. 12, 1988
Applicant:
Inventors:

Henry W Blackwell, Venus, TX (US);

Clifford L Talley, Hobbs, NM (US);

Rodger D Lacy, Midland, TX (US);

Assignee:

Dresser Industries, Inc., Dallas, TX (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ; E21B / ; E21B / ;
U.S. Cl.
CPC ...
166142 ; 166124 ; 166126 ; 166139 ; 166285 ; 166387 ;
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.


Find Patent Forward Citations

Blackwell, Henry. (1989). Apparatus for installing a liner within a well bore (U.S. Patent No. 4848459). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4848459

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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