Diamond composite sheet drill bit with combined pole and producing process

The present invention relates to composite diamond drill bit with combined pillar and its production process. The drill bit is non-core PDC bit with combined pillar comprising pillar, support body, PDC and PDC seat. The production process includes making PDC bit body with retained space for combined...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	GUANXIN,LIU YAN
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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