Reamer wing with balanced cutting loads

Details Reamer wing with balanced cutting loads Reamer wing with balanced cutting loads

1995-04-28

1996-03-05

Novosad, Stephen J.

Boring or penetrating the earth

Processes

175385, 175431, E21B 1026, E21B 1046, E21C 2510

Patent

active

054958997

ABSTRACT:
A multi-bladed reaming apparatus for enlarging a subterranean borehole, the apparatus having a tubular body with a plurality of longitudinally-extending, circumferentially-spaced, generally radially-extending blades carrying cutting elements, the blades being unequally spaced about the body. The cutting depth of the cutting elements on at least one of the blades is adjusted to modify the distribution of the depth of cut (DOC) among the cutting elements to substantially equalize the volume of formation material removed by the blades. Wear is reduced and the potential for premature failure of cutting elements on any single blade is alleviated.

REFERENCES:
patent: 4119350 (1978-10-01), Sander et al.
patent: 4635738 (1987-01-01), Schillinger et al.
patent: 4932484 (1990-06-01), Warrren et al.
patent: 5009271 (1991-04-01), Maric et al.
patent: 5042596 (1991-08-01), Brett et al.
patent: 5052503 (1991-10-01), Lof
patent: 5165494 (1992-11-01), Barr
patent: 5199511 (1993-04-01), Tibbitts et al.
patent: 5222566 (1993-06-01), Taylor
patent: 5259469 (1993-11-01), Stjernstrom et al.

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