Wells – Processes – Cementing – plugging or consolidating
Reexamination Certificate
2006-03-07
2006-03-07
Neuder, William (Department: 3672)
Wells
Processes
Cementing, plugging or consolidating
C166S177400
Reexamination Certificate
active
07007753
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.
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Exhibit A—Alexander Oil Tool (set of drawings—7 pages).
Caillouet Kenneth G.
Clement Bryan
Jacobs Steve
Pellegrin Murray
Robichaux Kip M.
Garvey, Smith Nehrbass & North, L.L.C.
Mako Rentals, Inc.
Nehrbass Seth M.
Neuder William
North Brett A.
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