Wells – Processes – Assembling well part
Reexamination Certificate
2006-11-15
2010-02-23
Gay, Jennifer H (Department: 3676)
Wells
Processes
Assembling well part
C166S075140, C166S077520, C166S098000, C166S383000, C294S086400, C294S093000
Reexamination Certificate
active
07665531
ABSTRACT:
A method and apparatus for facilitating the connection of tubulars using a top drive which, in one aspect, the apparatus includes a body connectable to said top drive. The body includes at least one gripping element radially displaceable by hydraulic or pneumatic fluid to drivingly engage a tubular to permit a screw connection between said tubular and a further tubular to be tightened to the required torque.
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Gay Jennifer H
Patterson & Sheridan LLP
Stephenson Daniel P
Weatherford / Lamb, Inc.
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