Parallel dual-tube separated layer water injection string

The utility model discloses a parallel dual-tube separated layer water injection string, which comprises an oil tube (1), an oil tube (2), a dual-tube packer (3), a single-tube packer (4), a hydraulic slip (5), a water injection nipple (6), an insertion seal (7), a setting device (8), a screen pipe...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	ZHANG HONGWEI, YANG JIJUN, YANG TIANCHENG, GE FENG, YUAN CANFEN, HUANG DAYUN, SHU CHANG
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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