Wells – Processes – Assembling well part
Reexamination Certificate
2007-02-13
2007-02-13
Bagnell, David (Department: 3672)
Wells
Processes
Assembling well part
C166S207000, C166S206000
Reexamination Certificate
active
10624842
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.
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Brisco David Paul
Cook Robert Lance
Haut Richard Carl
Mack Robert Donald
Ring Lev
Bagnell David
Bomar Shane
Haynes and Boone LLP
Mattingly Todd
Shell Oil Company
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