Petroleum drilling visual control device

The utility model relates to the technical field of oil exploitation drilling, in particular to an oil drilling visual control device which comprises a rotary outer cylinder and a rotary drill bit, and the outer side of the upper portion of the front end of the rotary outer cylinder is sequentially...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	WEI MINGDAN, ZONG YANBO, WANG RUIFEI, MA DUANYUE, TAN SHIHAO, YANG CHUAN
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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