Method of making a drill string stabilizer

Details Method of making a drill string stabilizer Method of making a drill string stabilizer

1982-10-12

1984-08-14

Godici, Nicholas P.

Metal fusion bonding

Process

With shaping

76108A, 76101A, B23K 3100

Patent

active

044652224

ABSTRACT:
This invention relates to a method of making a drill string stabilizer such as a drill collar stabilizer. It includes the steps of providing a length of drill string or drill collar as the body of the stabilizer. There is also provided a cylindrical section of a thick-walled tubing having an inside diameter matching the outside diameter of the stabilizer body. A plurality of helical and elongated sections from the cylindrical section of tubing are cut to form a plurality of spiral blades. These blades are attached as by welding to the body of said stabilizer in a circumferentially generally equally spaced row thereabout. The cylindrical section of tubing is selected to have a predetermined outside diameter such that the blades will have a predetermined radial thickness when attached to the body. In addition each of the blades may be provided with a tapered end surface so as to facilitate running of the tool in the well bore.

REFERENCES:
patent: 3348295 (1967-10-01), Bass

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