Roller cone drill bit

Details Roller cone drill bit Roller cone drill bit

1982-02-19

1983-10-11

Novosad, Stephen J.

Boring or penetrating the earth

Bit or bit element

Rolling cutter bit or rolling cutter bit element

175376, E21B 1016

Patent

active

044086717

ABSTRACT:
A roller bit for use with a drill string, having at least two cutters which are generally conically shaped; each cutter includes one or more teeth in inclined planes across a conical surface. The bit is attached to the drill string with the axis of rotation of the cutter angled with respect to the longitudinal axis of the drill string. The teeth on each cutter are arranged for maximum cuttings size and penetration rate.

REFERENCES:
patent: 1663332 (1928-03-01), Bull
patent: 1860587 (1932-05-01), Metzger
patent: 2046739 (1936-07-01), Harrington
patent: 2177332 (1939-10-01), Reed
patent: 2228286 (1941-01-01), Ross
patent: 2365266 (1944-12-01), Hamaker
patent: 2901224 (1959-08-01), Bolce et al.
patent: 3265139 (1966-08-01), Haden et al.

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