Wells – Submerged well – Connection or disconnection of submerged members remotely...
Reexamination Certificate
2006-05-30
2006-05-30
Thompson, Kenneth (Department: 3672)
Wells
Submerged well
Connection or disconnection of submerged members remotely...
C166S384000, C166S385000, C166S077300
Reexamination Certificate
active
07051814
ABSTRACT:
A tubing injector (10) includes a traction device (12) having opposed grippers (14) laterally moveable so as to move a respective chain link member (16) of an endless loop chain into gripping engagement with the coiled tubing. A drive motor (11) is provided for powering the endless loop chain, and a plurality of roller bearings (20) each act between a respective chain link member and a gripper. A pressure compensating device (30) subjects fluid in a fluid passageway in the roller bearing (20) to a fluid pressure functionally related to subsea pressure. The tubing injector may be used for injecting the coiled tubing subsea into a wellhead or into another flowline.
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Goode John
Iankov Ivan
Yater Ronald
McClung Guy
Thompson Kenneth
Varco I/P Inc.
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