Hydraulic oscillator with bevel-type impeller

The invention discloses an oscillator for reducing resistance and increasing the mechanical rotation speed in the fields of petroleum drilling and the like, and relates to a hydraulic oscillator witha bevel-type impeller. According to the technical scheme, an upper joint, a shell and a lower joint a...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	FAN CHANGYUE, TIAN JIALIN, HU XUEHUA, WEI LAI, HU ZHICHAO, GE TONGXU, WANG YANZHI, YANG YINGLIN
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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