Wells – Processes – Graveling or filter forming
Reexamination Certificate
2009-03-10
2010-12-07
Neuder, William P (Department: 3672)
Wells
Processes
Graveling or filter forming
C166S051000, C166S177400, C166S291000
Reexamination Certificate
active
07845408
ABSTRACT:
For use with a top drive power unit supported for connection with a well string in a well bore to selectively impart longitudinal and/or rotational movement to the well string, a feeder for supplying a pumpable substance such as cement and the like from an external supply source to the interior of the well string in the well bore without first discharging it through the top drive power unit including a mandrel extending through a sleeve which is sealably and rotatably supported thereon for relative rotation between the sleeve and mandrel. The mandrel and sleeve have flow passages for communicating the pumpable substance from an external source to discharge through the sleeve and mandrel and into the interior of the well string below the top drive power unit. The unit can include a packing injection system, clamp, and novel packing configuration.
REFERENCES:
patent: 1704053 (1925-03-01), Miller
patent: 2113647 (1938-04-01), Davidson et al.
patent: RE21677 (1940-12-01), Tremolada
patent: 3720264 (1973-03-01), Hutchison
patent: 3750749 (1973-08-01), Giroux
patent: 3850241 (1974-11-01), Hutchinson
patent: 4219087 (1980-08-01), Johnson
patent: 4418947 (1983-12-01), Talafuse
patent: 4722389 (1988-02-01), Arnold
patent: 4854383 (1989-08-01), Arnold et al.
patent: 4995457 (1991-02-01), Baldridge
patent: 5236035 (1993-08-01), Brisco et al.
patent: 5293933 (1994-03-01), Brisco
patent: 5443122 (1995-08-01), Brisco
patent: 5950724 (1999-09-01), Giebeler
patent: 6553825 (2003-04-01), Boyd
patent: 7007753 (2006-03-01), Robichaux et al.
patent: 7249632 (2007-07-01), Robichaux et al.
patent: 7500518 (2009-03-01), Robichaux et al.
patent: 2003/0024701 (2003-02-01), Simson
patent: 2004/0035574 (2004-02-01), Pippert
patent: 2276403 (1994-09-01), None
Caillouet Kenneth G.
Clement Bryan
Jacobs Steve
Pellegrin Murray
Robichaux Kip M.
Garvey, Smith Nehrbass & North, L.L.C.
Mako Rentals, Inc.
Neuder William P
North Brett A.
LandOfFree
Top drive swivel apparatus and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Top drive swivel apparatus and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Top drive swivel apparatus and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4161793