DRILL BIT HAVING GOUGING AND SHEAR CUTTERS

A drill bit includes a bit body defining a plurality of blades extending from a selected distance from an axis of rotation of the bit body to a gage face. A plurality of only gouging cutters is mounted on the bit body. At least one of the plurality of blades has a blade top surface longitudinally be...

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Bibliographische Detailangaben
Hauptverfasser:	MARLEY, Ryan J.C, WILKINS, Dallas, HERMAN, John James, BEATON, Timothy P
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:	A drill bit includes a bit body defining a plurality of blades extending from a selected distance from an axis of rotation of the bit body to a gage face. A plurality of only gouging cutters is mounted on the bit body. At least one of the plurality of blades has a blade top surface longitudinally behind the tips of the gouging cutters at a selected distance from the tips of the gouging cutters.