Wells – Processes – Assembling well part
Reexamination Certificate
2007-08-14
2007-08-14
Mai, Lanna (Department: 3637)
Wells
Processes
Assembling well part
C166S384000
Reexamination Certificate
active
10455466
ABSTRACT:
A variety of approaches to reducing or eliminating “end effect” or the tendency of tubular ends to reduce in diameter after expansion are disclosed. Some involve pre-bending the ends outwardly while others involve removing material internally or/and externally near the ends. Yet other approaches feature weakening the ends in other ways including penetration of the tubular material using openings of various shapes including slots or/and holes where the openings are between the tube ends or where they can extend on one or both ends all the way to the end of the tubular. Inserts that are softer than the tube material can be placed near the ends. If there is an end effect, then the protruding material can be pushed out of the way or broken off.
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Adam Mark K.
Carmody Michael A.
Garcia David A.
Jabs Mathew J.
O'Brien Robert S.
Baker Hughes Incorporated
Mai Lanna
Rosenblatt Steve
Smith Matthew J.
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