Pre-formed wear pads for drill stabilizers

Details Pre-formed wear pads for drill stabilizers Pre-formed wear pads for drill stabilizers

1978-03-20

1979-05-29

Godici, Nicholas P.

Metal tools and implements, making

Blank or process

Drill

308 4A, 175325, 29401R, B21K 502, F16C 126

Patent

active

041563743

ABSTRACT:
Hard surfacing the wear surface of rib-type stabilizers formed on drill strings by welding pre-formed wear pads upon the stabilizers. The pads are made of flattened, steel tube-like, thin wall, sheaths, filled with a matrix formed of hard carbide particles and a soft alloy binder. After welding each pad in place, its exposed wall section is removed to now expose a flat, accurately dimensioned, smooth carbide-binder hard wear surface. When the wear surface becomes worn, the worn pads may be removed by breaking the weldings and then replacing the pads with new pads welded in their place.

REFERENCES:
patent: 3268274 (1966-08-01), Ortloff et al.
patent: 3348295 (1967-10-01), Bass, Jr.
patent: 3454308 (1969-07-01), Kennedy
patent: 4081203 (1978-03-01), Fuller

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