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:
Nov. 07, 2006
Filed:
Mar. 08, 2004
Donald Bruce Campo, Richmond, TX (US);
Donald Bruce Campo, Richmond, TX (US);
Shell Oil Company, Houston, TX (US);
Abstract
A method is provided for providing a casing in a wellbore including placing a casing within the wellbore wherein the casing has a smaller outside diameter than a final inside diameter of the casing, placing an expandable mandrel within the casing, the expandable mandrel suspended from a drill string, converting the expandable mandrel to a first expansion diameter while the expandable mandrel is within the casing wherein the first expansion diameter is about the final inside diameter plus twice the thickness of the final casing; forcing the expanded mandrel through a lower portion of the casing while the expandable mandrel is of the first expansion diameter; converting the expandable mandrel to a second expansion diameter, wherein the second expansion diameter is about the final inside diameter, and forcing the expanded mandrel through an upper portion of the casing while the expandable mandrel is of the second expansion diameter.