Wells – Means for perforating – weakening – bending or separating pipe... – Cutter rotates circumferentially of pipe
Reexamination Certificate
2009-08-13
2010-11-02
Bagnell, David J (Department: 3672)
Wells
Means for perforating, weakening, bending or separating pipe...
Cutter rotates circumferentially of pipe
C175S284000, C082S001200, C082S001110, C407S053000, C409S201000
Reexamination Certificate
active
07823632
ABSTRACT:
A methodology and apparatus for cutting shape(s) or profile(s) through well tubular(s), or for completely circumferentially severing through multiple tubulars, including all tubing, pipe, casing, liners, cement, other material encountered in tubular annuli. This rigless apparatus utilizes a computer-controlled, downhole robotic three-axis rotary mill to effectively generate a shape(s) or profile(s) through, or to completely sever in a 360 degree horizontal plane wells with multiple, nested strings of tubulars whether the tubulars are concentrically aligned or eccentrically aligned. This is useful for well abandonment and decommissioning where complete severance is necessitated and explosives are prohibited, or in situations requiring a precise window or other shape to be cut through a single tubular or plurality of tubulars.
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Alley Mark Franklin
McAfee Wesley Mark
Bagnell David J
Completion Technologies, Inc.
Hulsey III William N.
Hulsey P.C.
Loikith Catherine
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