Metal working – Method of mechanical manufacture – Assembling or joining
Reexamination Certificate
2006-10-03
2006-10-03
Hong, John C. (Department: 3726)
Metal working
Method of mechanical manufacture
Assembling or joining
C029S429000, C029S426100, C029S709000, C029S235000
Reexamination Certificate
active
07114235
ABSTRACT:
A method and apparatus for making and breaking tubular connections at the surface of a well by utilizing a pipe joining system. The pipe joining system includes a movable support frame for supporting and integrating on a rig floor the tools associated with making and breaking the connection between two tubulars. Tools incorporated in the pipe joining system include combinations of a wrenching assembly for gripping the tubulars and applying torque to the connection, a spinner for spinning the joints of the tubulars into connection, a positioning tool for vertically and/or horizontally aligning the tubulars in the system, a cleaning and doping device for cleaning and doping the threads of the tubulars, a stabbing guide for properly aligning the tubulars before joining, a mud bucket for handling mud spillage during the breaking of the tubulars, and a control system that remotely operates the entire automated system.
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Jansch Manfred
Wilschinsky Holger
Hong John C.
Patterson & Sheridan L.L.P.
Weatherford / Lamb, Inc.
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