A drill bit equipped with vortex nozzles

The present invention relates to borehole drilling and in particular relates to a drill bit comprising a body 1 provided with a central conduit 2, a plurality of rock disintegrating elements 3, and at least one vortex nozzle 4. Each nozzle 4 has a vortex chamber 5 provided with a number of inlet ope...

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Bibliographische Detailangaben
Hauptverfasser:	SALAVAT IMAMGAYAZOVICH FAIZYLGAYANOV, KHAMZA ISKHAKOVICH AKCHURIN, LEONID ALEXANDROVICH ALEXEEV, ALEXANDR ALEXANDROVICH VOLOSHIN, NAIL BULATOVICH SHARIPOV, VIL FAIZULLOVICH GALIAKBAROV, MIDKHAT PAKHMATULLICH MAVLJUTOV, GNIYATULLA GARIFULLOVICH ISHBAEV
Format:	Patent
Sprache:	eng
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Beschreibung
Zusammenfassung:	The present invention relates to borehole drilling and in particular relates to a drill bit comprising a body 1 provided with a central conduit 2, a plurality of rock disintegrating elements 3, and at least one vortex nozzle 4. Each nozzle 4 has a vortex chamber 5 provided with a number of inlet openings 6 that communicate with the central conduit 2, and with an outlet opening. The inlet openings 6 are made in the side wall of the chamber 5 and have a tangential orientation relative to the above chamber 5 and a perpendicular orientation in relation to the longitudinal axis of the chamber 5. The drill bit comprises also an ejector unit 10 accommodated in the bit body 1 and adapted to establish communication between the central conduit 2 and the vortex chamber 5, and the atmosphere.