Anti-bit balling PDC drill bit

The utility model discloses an anti-bit balling PDC drill bit, mainly comprising a drill bit body, a PDC composite sheet and bulges at the surface of the drill bit body; the attaching force of rock debris to the surface of a cutter wing can be reduced by the bulges at the surface; when the rock debr...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	TIAN JINGYAN, LI HONGXUAN, SUN JUN, QIU WEI, HOU QINGYONG, XU YUCHAO, ZHANG DONG, GUAN SHUWEI, ZHANG KUN, WANG WEITAO, CHEN XI, WANG MINGRUI
Format:	Patent
Sprache:	chi ; 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 utility model discloses an anti-bit balling PDC drill bit, mainly comprising a drill bit body, a PDC composite sheet and bulges at the surface of the drill bit body; the attaching force of rock debris to the surface of a cutter wing can be reduced by the bulges at the surface; when the rock debris is attached to the surface of the drill bit, gaps exist between the rock debris and the surface of the drill bit due to the existence of the bulges at the surface, so drilling fluid enter the gaps, the rock debris can be more easily washed by slurry from the surface of the drill bit and the anti-bit balling effect for the drill bit is achieved.