Wells – Processes – Perforating – weakening – bending or separating pipe at an...
Reexamination Certificate
2008-05-13
2008-05-13
Gay, Jennifer H. (Department: 3676)
Wells
Processes
Perforating, weakening, bending or separating pipe at an...
C166S055800, C082S082000
Reexamination Certificate
active
11298784
ABSTRACT:
The casing cutter disclosed herein is useful for severing downhole tubulars and comprises a body, slips, a cutting head, cutting blades, and actuators for operating the cutting head and cutting blades. The casing cutter can be anchored within casing wellbore with the slips to provide anchoring support during the cutting operation. Cutting is accomplished by rotatingly actuating the cutting head with an associated motor, and then radially extending the cutting blades away from the cutting head. The cutting blades are actuated by a hydraulic motor operatively coupled to the cutting blades by a series of gears.
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Hill Freeman L.
Miller Jerry E.
Spencer Douglas W.
Walter Chris
Baker Hughes Incorporated
Bracewell & Giuliani LLP
Gay Jennifer H.
Stephenson Daniel P
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