Milling tool

Details Milling tool Milling tool

1991-10-08

1993-01-26

Neuder, William P.

Wells

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

Cutter rotates circumferentially of pipe

175406, E21B 1026

Patent

active

051815648

ABSTRACT:
A tool for milling a down-hole casing or tubing comprising a tubular body rotatable about its longitudinal axis and having a longitudinal passage therethrough. Means is provided at a first end of the cylindrical body for connection to a drive means to rotate the body. The first end forms the upper end of the body in the working position. At least one first blade extends outwardly from the cylindrical body and has a lowermost cutting edge extending upwardly from its innermost portion at an angle of from about 2.degree. to about 60.degree. to a radial plane perpendicular to said longitudinal axis, and at least one second blade extends outwardly from the cylindrical body and has a lowermost cutting edge extending downwardly from its outermost portion at an angle of from about 2.degree. to about 60.degree. to a radial plane perpendicular to said longitudinal axis.

REFERENCES:
patent: 5058666 (1991-10-01), Lynde et al.
patent: 5074356 (1991-12-01), Nett

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