Rotation wellhead hydraulic packer

The utility model discloses a rotary wellhead hydraulic blockage, which belongs to the field of wellhead equipment of oil/gas fields and comprises a hollow upper joint rotator and a hollow lower joint rotator interconnecting axially via threads, a cylinder body is provided sleevedly between the uppe...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	ZONGLIN,DING ZHANG
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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