Tuned support for cutting elements in a drag bit

Details Tuned support for cutting elements in a drag bit Tuned support for cutting elements in a drag bit

1982-09-24

1984-10-23

Novosad, Stephen J.

Boring or penetrating the earth

Natural vibration characteristic of an element of boring...

175391, 175409, E21B 1000

Patent

active

044782950

ABSTRACT:
Harmonic resonation of cutting elements against the earth formation is impeded in a rotary drag-type drill bit by providing connection means which yieldably and resiliently support the cutting elements from the drill bit but which deflects or vibrates with different natural resonant harmonic frequencies. The different natural harmonic frequencies tend to cancel or nullify resonance of any one of the connection means. The connection means can also be externally damped against vibrational movement.

REFERENCES:
patent: 3101934 (1963-08-01), Poundstone
World Oil, Jan. 1977, pp. 109-112, Particularily p. 112, 1st column, Daniel R. Sabre, "Superhard Materials Promise Extended Wear Capability".

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