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:
Feb. 13, 2007
Filed:
Jul. 22, 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);
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);
Shell Oil Company, Houston, TX (US);
Abstract
A wellhead is formed by extruding a plurality of tubular liners off of a mandrel into contact with an outer casing. The first tubular liner and mandrel are positioned within the wellbore with the tubular liner in an overlapping relationship with the outer casing. At least a portion of the tubular liner is extruded off of the mandrel into contact with the interior surface of the outer casing. The first tubular liner is extruded off of the mandrel by pressurizing an interior portion of the first tubular liner. Subsequent tubular liners are positioned in concentric overlapping relation and similarly extruded off of a mandrel into at least partial contact with the interior surface of the outer casing.