Pipe joints or couplings – Nonmetal to metal – Internal member
Reexamination Certificate
2006-06-22
2009-12-29
Hewitt, James M (Department: 3679)
Pipe joints or couplings
Nonmetal to metal
Internal member
C285S382000, C166S242600
Reexamination Certificate
active
07637539
ABSTRACT:
A connection between coiled tubing and a connector includes a plurality of dimples formed by a tubing, each dimple is disposed within a respective pocket formed in a connector to form at least two rows of dimple-pocket connections, wherein the fit of the dimples within the pockets of the rows graduates from tighter to looser along the length of the connection. The connection may further include a seal member positioned between the tubing and the connector positioned between at least two of the rows of dimple-pocket connections formed. A method of connecting coiled tubing to a connector includes the steps of graduating the dimple-pocket connections from tighter to looser along the length of the connection.
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BD Kendle Engineering Limited; “Coiled Tubing Tools—Section 3: Inline Connectors”; printed Mar. 23, 2007, www.bdkendle.co.uk/Coiled—Tubing.
Eatwell William D.
Espinosa Frank F.
McKee L. Michael
Cate David
Flynn Michael
Hewitt James M
Nava Robin
Schlumberger Technology Corporation
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