Nozzle for rotary bit

Details Nozzle for rotary bit Nozzle for rotary bit

1987-02-03

1988-04-26

Novosad, Stephen J.

Boring or penetrating the earth

Bit or bit element

With fluid conduit lining or element

175340, 175424, E21B 1060

Patent

active

047398450

ABSTRACT:
A rotary drill bit comprises a bit body carrying a plurality of cutting elements and a main conduit for conducting drilling fluid. A plurality of nozzle bodies is rotatably seated in bores of the bit body. Each nozzle body includes a plurality of passages extending therethrough for conducting drilling fluid in such manner that the exiting fluid causes the nozzle body to rotate about its longitudinal axis. The exiting fluid is thus distributed in a wider pattern.

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patent: 2911196 (1959-11-01), Cameron et al.
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patent: 4073438 (1978-02-01), Meyer
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patent: 4213354 (1980-07-01), Dahinden
patent: 4365758 (1982-12-01), Schaming
patent: 4369850 (1983-01-01), Barker
patent: 4542798 (1985-09-01), Madigan
patent: 4687066 (1987-08-01), Evans

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