Wells – Processes – Perforating – weakening – bending or separating pipe at an...
Patent
1992-09-21
1994-03-29
Neuder, William P.
Wells
Processes
Perforating, weakening, bending or separating pipe at an...
166 556, 407 2, 407116, 408144, E21B 1026
Patent
active
052976300
ABSTRACT:
A cutting tool (22) includes a plurality of pivoted blades (36) for swinging outwardly to an expanded radial position for first cutting the walls of multiple casing strings (10, 11), and then removing a predetermined length of the casing strings (10, 11) simultaneously in a cutting action. Pivoted blades (36) have cutting elements (66) of a similar size and shape positioned about upper, lower sides (62) of the blades (36) engage the upper annular cut ends of the casing strings (10, 11) in a cutting action without tripping or removal from the bore hole.
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Harvey, Jr. Harold H.
Lynde Gerald D.
Baker Hughes Incorporated
Neuder William P.
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