Dual mode rotary cutting tool

Details Dual mode rotary cutting tool Dual mode rotary cutting tool

1993-10-04

1995-01-31

Dang, Hoang C.

Wells

Means for perforating, weakening, bending or separating pipe...

Cutter rotates circumferentially of pipe

175267, E21B 1032, E21B 2906

Patent

active

053852052

ABSTRACT:
A downhole rotary cutting tool having an elongated cylindrical body with radially expanded cutting blades that are controlled by application of selected fluid as controlled from a surface source. The cutting blades have a combined abrading/jetting capability as hardened cutting surfaces are disposed at critical points of each blade and each cutting blade is ported to provide lateral jet emissions for entry into the surrounding earth medium.

REFERENCES:
patent: 2180452 (1939-11-01), Boulter
patent: 2482674 (1949-09-01), Kriegel
patent: 2799475 (1957-07-01), Harlan et al.
patent: 2940522 (1960-06-01), Taylor et al.
patent: 3528516 (1970-09-01), Brown
patent: 5201817 (1993-04-01), Hailey
patent: 5242017 (1993-09-01), Hailey

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