Packer in borehole

The utility model discloses a packer used for pressure cracking an oil well or a water well in the oil field, solving the technical problem that the pipe column is easy to be blocked during pressure crack construction due to the 'high sand rate and low replacement and squeeze', and charact...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	XIE JIANHUA, PAN SHIJING, ZHU ZHENRUI
Format:	Patent
Sprache:	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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