Long plunger sand setting and oil drainage integrated multifunctional oil well pump

The invention belongs to the technical field of oil exploitation equipment, and particularly relates to a long plunger sand setting and oil drainage integrated multifunctional oil well pump, which comprises a pump cylinder assembly, and is characterized in that the pump cylinder assembly is connecte...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	LI CHUNGUANG, GU WANLIANG, ZHOU YI, DONG XILING, ZHANG YICHANG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING HEATING LIGHTING MECHANICAL ENGINEERING POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS WEAPONS
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