Coated anti-corrosion sucker rod with centralizing and sealing device

The utility model discloses a cladding type anti-corrosion sucker rod with a centralizing and sealing device, which comprises a female joint, a conventional sucker rod and a reducing joint which are connected in sequence, the middle part of the conventional sucker rod is a long straight rod body, th...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	WANG HAILONG, ZHANG JUGUO, ZHANG KE, LI GANG
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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