Double-well swing arm pumping unit

The invention relates to a double-well swing arm pumping unit which comprises a main support; the support is fixe don a foundation; a balance bar is connected with the support; a rope hanging device is connected with pumping rods; a swing arm is fixed on the support; a rope tightening device is arra...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	LI PENG, ZOU LINGCHUAN, ZHANG BO, LIU JUNYI, CUI GANGDOU, WANG YANG, ZOU TAO, LIU CHANG, PAN QUAN, HE PINGJUN
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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