Decentralized wellhead centralizer

The utility model discloses a decentralized wellhead centralizer, its characterized in that: it is including the power pole, at fixed the being provided with clamping device who is used for pressing from both sides tight packing box of the lower extreme of power pole, is provided with the rotation e...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	KANG HONGLING, YIN XINHUA, ZHANG YONGHE, WANG XIQING, JIAO YONGGAO
Format:	Patent
Sprache:	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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