Safety pin for oil and gas well logging

The utility model relates to a safety pin for oil and gas well logging, which comprises a fixing frame, an adjusting mechanism is arranged in the fixing frame, the adjusting mechanism comprises a cylinder fixedly connected with the fixing frame, the right side of the cylinder is fixedly connected wi...

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Bibliographische Detailangaben
Hauptverfasser:	FU HENG, ZHENG YIBO, JIA LEI, LAN FEIYAN, LIANG JUNQIN, GUO 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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