Torpedo-passing bypass nipple with long-neck rod body

A torpedo-passing bypass nipple with a long-neck rod body comprises a barrel, the upper end and the lower end of the barrel are respectively provided with a thread structure connected with a drill rod, an eccentric inner hole is formed in the barrel, a cable leading-in hole is formed in the side wal...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	GUO KAI, ZHANG RUIQIANG, WEI CHUNBING, LENG YAYU, LI ZHAOCHUN, JIA QIAN, GONG JIE, WANG XIAOMEI, SHA YUZHUO
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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