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:
Oct. 21, 2008
Filed:
Apr. 23, 2003
Robert Lance Cook, Katy, TX (US);
David Paul Brisco, Duncan, OK (US);
R. Bruce Stewart, The Hague, NL;
Lev Ring, Houston, TX (US);
Richard Carl Haut, Sugar Land, TX (US);
Robert Donald Mack, Katy, TX (US);
Alan B. Duell, Duncan, OK (US);
Robert Lance Cook, Katy, TX (US);
David Paul Brisco, Duncan, OK (US);
R. Bruce Stewart, The Hague, NL;
Lev Ring, Houston, TX (US);
Richard Carl Haut, Sugar Land, TX (US);
Robert Donald Mack, Katy, TX (US);
Alan B. Duell, Duncan, OK (US);
Shell Oil Company, Houston, TX (US);
Abstract
A method of forming a wellhead including: drilling a wellbore; positioning an outer casing at least partially within an upper portion of the wellbore; positioning a first tubular member within the outer casing; expanding at least a portion of the first tubular member into contact with an interior surface of the outer casing; positioning a second tubular member within the outer casing and the first tubular member; and expanding at least a portion of the second tubular member into contact with an interior portion of the outer casing; wherein, after expanding the portions of the first and second tubular members into contact with the interior portion of the outer casing, at least a portion of the second tubular member is positioned within the first tubular member; and wherein, after expanding the portions of the first and second tubular members into contact with the interior portion of the outer casing, the first tubular member and the second tubular member define a passage there between.