Rotary drill bit

Details Rotary drill bit Rotary drill bit

1986-08-15

1989-05-16

Novosad, Stephen J.

Boring or penetrating the earth

Bit or bit element

With fluid conduit lining or element

175424, E21B 1060

Patent

active

048301248

ABSTRACT:
A drag type bit is equipped with nozzles for creating high velocity mud jets discharging into waterways in front of the wings of the bit, which nozzles are oriented such that each jet successively strikes the borehole bottom and front face of a wing at a small angle.

REFERENCES:
patent: 2365941 (1944-12-01), Crake
patent: 4116289 (1978-09-01), Feenstra
patent: 4452324 (1984-06-01), Jurgens
patent: 4529250 (1985-07-01), Radford et al.

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