Wellhead self-locking cable lifting device

The utility model discloses wellhead self-locking cable lifting device equipment which comprises an extrusion pipe and a locking plate body movably connected in the extrusion pipe, the top of the locking plate body is fixedly connected with a connecting block, the connecting block and the locking pl...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	GUO JIULONG, GUO JIADAI
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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