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:
Jul. 08, 2008
Filed:
Jul. 07, 2004
Applicant:
David John Hillis, Balmedie, GB;
Inventor:
David John Hillis, Balmedie, GB;
Assignee:
Weatherford/Lamb, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 43/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of expanding tubing such as a section of casing includes locating the casing in a bore and expanding a portion of the casing to engage the bore wall using an expansion tool having at least one radially movable expansion member. The expansion member may be in the form of a roller of a rotary expander. The method additionally includes subsequently expanding a further portion of the casing by advancing a cone expander through the casing.