Pipe body packer

The utility model relates to a pipe body packer, which comprises a central pipe, an upper connector, a lower connector, a first sleeve, a second sleeve and a third sleeve. The central pipe defines a first channel. The two ends of the central pipe are provided with an upper connector and a lower conn...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	FAN LINGYUN, ZHONG XIAO, ZHOU SHENGFU, ZHAO SHAOWEI, LI JING, XIE JIN, LIU LIAN, ZOU WEI, LI XIAOSHENG, CUI LONGBING
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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