Self -circulation hot well -flushing wax removal gathering system

The utility model relates to a self -circulation hot well -flushing wax removal gathering system, the sucker rod of beam -pumping unit inserts in oil pipe, oil pipe is arranged in sleeve pipe in the pit, the cross that lies in more than the ground is installed to the port on the sheathed tube in the...

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Bibliographische Detailangaben
Hauptverfasser:	LI XING, LIU SONGLIN, PAN GUOHUI, BAI YOUGUO, LI FANLEI, GUAN JUN
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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