MECHANICAL ATTACHMENT OF CUTTING ELEMENTS TO AN EARTH-BORING BIT

MECHANICAL ATTACHMENT OF CUTTING ELEMENTS TO AN EARTH-BORING BIT

Methods for attaching cutting elements to an earth-boring bit rely on keying the cutting elements inside cavities formed in the earth-boring bit. The attachment methods may involve specific shapes of the cutting elements and the cavities in which the cutting elements are received, and/or mechanical...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: MOROZOV, Konstantin, SAUVAGEAU, Richard, IVIE, Bradley
Format: Patent
Sprache:eng ; fre ; ger
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:Methods for attaching cutting elements to an earth-boring bit rely on keying the cutting elements inside cavities formed in the earth-boring bit. The attachment methods may involve specific shapes of the cutting elements and the cavities in which the cutting elements are received, and/or mechanical retainers. Preferably, the blade of the earth-boring bit is thicker around the opening in the edge of the blade than when the cavity is shaped for receiving a cutting element that has a circular cross-section.