Anti-abrasion device for pump cylinder of oil well pump

The invention relates to the technical field of underground protectors, in particular to an oil well pump barrel anti-abrasion device which comprises an outer connecting pipe and an inner anti-abrasion sleeve, and an oil pipe connecting structure used for being connected with the lower end of an oil...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	CHEN YUJIE, QIN SHIQUN, WANG DENGHUI, LIN BO, HUANG XUN, LIU PENGSHUAI
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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