Variable length three-cone rock bit nozzles

Details Variable length three-cone rock bit nozzles Variable length three-cone rock bit nozzles

1984-05-16

1987-05-19

Novosad, Stephen J.

Boring or penetrating the earth

Bit or bit element

Rolling cutter bit or rolling cutter bit element

175393, E21B 1018

Patent

active

046659994

ABSTRACT:
This invention relates to multi-cone rock bits with three or more nozzles of varying length to affect different flow velocities from each of the nozzles. The nozzles at different lengths create a crossflow of fluid on a borehole bottom to lift detritus therefrom during rock bit drilling operations.

REFERENCES:
patent: 1945258 (1934-01-01), Collins
patent: 2045368 (1936-06-01), Reed
patent: 2644671 (1953-07-01), Ingram
patent: 2710741 (1955-06-01), Hall, Sr.
patent: 2754091 (1956-07-01), Kucera
patent: 3923109 (1975-12-01), Williams, Jr.
patent: 4068731 (1978-01-01), Garner et al.
patent: 4187921 (1980-02-01), Garner
patent: 4452324 (1984-06-01), Jurgens

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