Conductor torquing system

Details Conductor torquing system Conductor torquing system

2006-10-03

2006-10-03

Hong, John C. (Department: 3726)

Metal working

Method of mechanical manufacture

Disassembling

C029S464000, C029S235000, C029S240000

Reexamination Certificate

active

07114234

ABSTRACT:
A conductor torquing system is provided for large diameter threaded conductor casing which comprises a lower chain vise or fixed grip head adapted to grip a first joint of conductor casing, a plurality of movable arms operable to apply a retaining force to a second joint of conductor casing to maintain the latter in rotational contact with a spinning means. The spinning means is operable to rotationally make-up the second joint of conductor casing to the first joint of conductor casing to an initial make-up torque valve. The apparatus also includes an upper chain vise or rotary grip head for gripping the second joint of conductor casing and applying a final make-up torque to the threaded connection. The apparatus will allow a conductor connection to be made-up in a safe and efficient manner and generally assist in reaching the final torque stage more rapidly.

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patent: WO 01/81047 (2001-11-01), None
International Search Report dated Jul. 29, 2003.
Photograph of chain tong.
Photograph of spinning conductor pipe with rope.
Photograph of dual chain vises for breaking out horizontal conductor pipe.
International Search Report dated Mar. 9, 2004.

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