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.
Patent No.:
Date of Patent:
Oct. 27, 1981
Filed:
Oct. 05, 1979
Applicant:
Inventors:
Donald F Taylor, Dallas, TX (US);
James H Bostock, Denton, TX (US);
Assignee:
Otis Engineering Corporation, Dallas, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ; E21B / ; F16J / ; F16J / ;
U.S. Cl.
CPC ...
166120 ; 166196 ; 166139 ; 166140 ; 2772 / ; 277D / ;
Abstract
A well packer for use in geothermal wells or stem injection wells. The packer can be anchored to the inner wall of a casing string to resist differential pressure in either direction. The anchoring means includes a single set of slip elements which are hydraulically or mechanically set. The packer includes a sealing unit with packing elements especially adapted for high temperature wells. The packer can be simply released from the casing by upward tension on the tubing.