Downhole tool rotating device

The invention discloses a downhole tool rotating device. The upper part of a guide nozzle is connected to an inner channel in a casing, a liquid discharging channel is formed in the middle of the guide nozzle, the lower part of the guide nozzle is sleeved with a bearing, an inner hole of the bearing...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	HUANG LIMIN, LI JUNFENG, DING PENGFEI, GENG ZHENGHUA, LI HAIQING, ZHANG LIANGLIANG, ZHU HUALIANG, MA XIAOSHI, MEI SUNAN, JI WEI
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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