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:
Aug. 15, 2006
Filed:
Sep. 15, 2004
Sidney K. Smith, Jr., Conroe, TX (US);
Martin P. Coronado, Cypress, TX (US);
Andy Tom, Houston, TX (US);
Van N. Ho, Houston, TX (US);
Fatih M. Kara, Houston, TX (US);
Sidney K. Smith, Jr., Conroe, TX (US);
Martin P. Coronado, Cypress, TX (US);
Andy Tom, Houston, TX (US);
Van N. Ho, Houston, TX (US);
Fatih M. Kara, Houston, TX (US);
Baker Hughes Incorporated, Houston, TX (US);
Abstract
Tools for expanding downhole tubulars into each other or in open hole are disclosed. One embodiment uses a movable cone biased by Bellville washers to move longitudinally against such bias and allow collets to move radially in or out to a predetermined maximum diameter. A release system allows collet retraction to avoid hang up on removal. In an alternate embodiment, more suitable for open hole applications, pressurized gas pushes a movable cone longitudinally against the collets. A stationary cone is on the opposite side of the collets from the movable cone. The collet rides out or in between the cones and raises the gas pressure when forced in. A pressure actuated release allows the lower cone to shift downwardly to allow the collets to retract for removal.