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:
May. 21, 2002
Filed:
Jul. 05, 2000
Robert Joe Coon, Houston, TX (US);
Timothy John Frank, Houston, TX (US);
Friedhelm Makohl, Celle, DE;
Shell Oil Company, Houston, TX (US);
Abstract
A method of creating a downhole sealing and hanging device comprising the steps of lowering a first tubular in a well bore, then lowering through the first tubular a second tubular with slightly smaller external diameter than the internal diameter of the first tubular, and made of formable steel, in such a way that the upper section of the second tubular remains within the lower section of the first tubular, and finally plastically expanding at least the upper section of the second tubular by application of a radial force to the interior of the upper section of the second tubular thereby creating an interference fit capable of forming a bond and a hydraulic seal between the first and second tubular.