MULTI-CHAMFER CUTTING ELEMENTS HAVING A SHAPED CUTTING FACE, EARTH-BORING TOOLS INCLUDING SUCH CUTTING ELEMENTS, AND RELATED METHODS

An earth-boring tool comprising at least one cutting element, the cutting element including a substrate and volume of superabrasive material positioned on the substrate. The volume of superabrasive material includes a cutting face having at least one recess extending into the volume of superabrasive...

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Bibliographische Detailangaben
Hauptverfasser:	STOCKEY, David, A, SCOTT, Danny, E, PATEL, Suresh, LEDGERWOOD, Leroy, W, FLORES, Alejandro, DIGIOVANNI, Anthony, A
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:	An earth-boring tool comprising at least one cutting element, the cutting element including a substrate and volume of superabrasive material positioned on the substrate. The volume of superabrasive material includes a cutting face having at least one recess extending into the volume of superabrasive material and/or at least one protrusion extending outward from the volume of superabrasive material. The volume of superabrasive material includes a first chamfer surface having a peripheral edge and a radially-innermost edge. The peripheral edge of the first chamfer surface is located proximate a cutting edge of the volume of superabrasive material. A radial width of the first chamfer surface is between about 0.002 inches and about 0.045 inches. The volume of superabrasive material also includes a second chamfer surface having a peripheral edge and a radially-innermost edge. The peripheral edge of the second chamfer surface is located adjacent the radially-innermost edge of the first chamfer surface.