Drill bit detecting device for oil field well drilling

The utility model discloses a drill bit detecting device for oil field well drilling. According to the technical scheme, a screw rod is connected to the interior of a shell through a bearing, one end of the screw rod is fixed through a bearing, the other end of the screw rod is connected with an ult...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	WANG LEI, ZHAO PENG, SONG YINHUI
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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