Compound piece ream bit of cascaded scraper of major diameter

The utility model relates to a compound piece ream bit of cascaded scraper of major diameter, including the drill bit body with set up in the starter of drill bit body lower extreme, be provided with a plurality of wings body on the drill bit body, the wing body is the stairstepping structure. The b...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	WANG HENGQIANG, QIN ZEYUN, WANG GUANGPING, ZHAO LANCHUN, WANG WEN, GAO MINZHONG, WANG QINMING, LIAO XU
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
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!