Well Flow Control Using Delayed Secondary Safety Valve

A flow control system for a well includes a primary safety valve and a secondary safety valve for controlling flow from production tubing in the well. The primary safety valve includes a first valve body, a first flapper, a first control line port for receiving control fluid pressure from a control...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	Dusterhoft, Ross Glen, Pickle, Brad Richard, McFate, Charles David
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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