Downhole safety valve with power cable

Production tubing 15 can be hung within a well bore casing 12 to raise gas from a well. A tubing insert string 30 can be run within the well having a fluid bore 50 and an electric power cable or connection member 82 which runs from the surface to a pump 70. The insert string 30 includes a safety val...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	GRAHAM MACKAY, COLIN GORDON RAE, MARTIN RIDDELL, STEVE MCLEOD
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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