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:
Mar. 21, 1995
Filed:
Sep. 28, 1993
Applicant:
Inventors:
David M Eslinger, Broken Arrow, OK (US);
Robert M Sorem, Sugar Land, TX (US);
Assignee:
Dowell Schlumberger Incorporated, Sugar Land, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
166187 ;
Abstract
An inflatable packer for use in a well includes a tubular mandrel, an inner elastomer sleeve on the mandrel, armor surrounding the inner sleeve, and an outer elastomer sleeve member that covers at least a portion of the armor. Stress rings are mounted on end portions of the armor are made from a metal plate which has been highly cold-worked in both its longitudinal and transverse directions to provide optimum strength characteristics against stresses imposed thereon when the packer is inflated.