Insulating nipple for petroleum instrument

The utility model discloses an insulating short section for a petroleum instrument, which comprises a tension-bearing threaded sleeve, the upper end of the tension-bearing threaded sleeve is detachably connected with the lower end of an upper joint, and the lower end of the tension-bearing threaded...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	QIN LING, NIU PENGGANG, ZHANG JIAN, WU YAMIN
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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