Wells – Means for perforating – weakening – bending or separating pipe... – Cutter rotates circumferentially of pipe
Patent
1988-03-18
1991-05-14
Bilinsky, Z. R.
Wells
Means for perforating, weakening, bending or separating pipe...
Cutter rotates circumferentially of pipe
408 80, 408144, E21B 2900
Patent
active
050147781
ABSTRACT:
An oil field cutting tool (10) for progressively cutting away a tubular member (14) installed within a well from the upper annular end (12) of the tubular member (14). The cutting tool (10) includes a plurality of elongate blades (32) spaced about the periphery of the cylindrical body (18) of the cutting tool (10). A plurality of cutting elements (42) of a predetermined size and shape are secured in a predetermined pattern on the leading surface of the blades (32) in a plurality of closely spaced parallel rows extending transversely between the sides of the blades (32) and in a plurality of closely spaced parallel columns extending generally longitudinally between the ends of the blades (32).
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Harvey, Jr. Harold H.
Lynde Gerald D.
Winterrowd Kenneth W.
Bilinsky Z. R.
Tri-State Oil Tools, Inc.
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