A system including an electrical actuator for a valve in a wellhead assembly

A tubing hanger 32 configured to be positioned in a wellhead assembly 10, including: a bore 50 extending at least partially through the tubing hanger; and a valve 100 disposed along the bore, wherein the valve is configured to control the flow of a fluid medium through the bore, the valve including:...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Gregory K Norwood, David G Holliday, David Scantlebury, Daniel J Mclaughlin, Christopher D Bartlett, John Mossop, Matthew Crotwell
Format:	Patent
Sprache:	eng
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS DEVICES FOR VENTING OR AERATING EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING ENGINEERING ELEMENTS AND UNITS FIXED CONSTRUCTIONS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
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Beschreibung
Zusammenfassung:	A tubing hanger 32 configured to be positioned in a wellhead assembly 10, including: a bore 50 extending at least partially through the tubing hanger; and a valve 100 disposed along the bore, wherein the valve is configured to control the flow of a fluid medium through the bore, the valve including: an electrical actuator (Fig. 2, 200) disposed at least partially within the tubing hanger, and configured to selectively open or close the valve in response to one or more electrical signals. The valve is preferably a gate valve which may be disposed in a secondary bore (Fig. 9B, 813), and the electrical actuator preferably comprises a gear assembly (Fig. 9B, 920) having a worm (Fig. 9B, 925).