Articulating bail assembly and method

Details Articulating bail assembly and method Articulating bail assembly and method

2008-04-22

2008-04-22

Gay, Jennifer H. (Department: 3676)

Wells

Above ground apparatus

With means facilitating connecting or disconnecting...

C166S077100, C166S379000

Reexamination Certificate

active

11260654

ABSTRACT:
An apparatus for performing well intervention work on a rig. The apparatus comprises a first spreader that is operatively connected to a derrick, a pair of I-beams that have a distal end and a proximal end, and wherein the distal end of the pair of I-beams are connected to the first spreader. The apparatus further comprises a second spreader, and wherein the proximal end of the I-beams is connected to the second spreader. The apparatus further comprises a first pivot point on the first spreader and a second pivot point on the second spreader. In the most preferred embodiment, the apparatus further comprises a door, operatively attached to the second spreader, for allowing entry of the tubular. Also, the second spreader may include a shoulder for engagement with a tubular so that the tubular is supported by the second spreader so that the weight of the tubular can be transferred to the second spreader. A method of lifting a tubular used in well intervention work on a rig is also disclosed.

REFERENCES:
patent: 4209066 (1980-06-01), Watson
patent: 6966385 (2005-11-01), Hemphill et al.
patent: 7077209 (2006-07-01), McCulloch et al.
patent: 2005/0189118 (2005-09-01), Moncus et al.

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