Section-balanced electric safety valve and method of operating an electric safety valve

Provided are electric safety valves and methods of use. An electric safety valve comprises an electric actuator positioned in an interior chamber of the electric safety valve; the interior chamber comprising a dielectric fluid and being pressure and temperature compensated with a flow passage extend...

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Hauptverfasser: Bruce Edward Scott, James Dan Vick, Jr
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creator Bruce Edward Scott
James Dan Vick, Jr
description Provided are electric safety valves and methods of use. An electric safety valve comprises an electric actuator positioned in an interior chamber of the electric safety valve; the interior chamber comprising a dielectric fluid and being pressure and temperature compensated with a flow passage extending axially through the electric safety valve. The pressure and temperature compensation is performed via a compensating subassembly in pressure communication with the interior chamber thereby providing a section-balanced electric safety valve. The electric safety valve further comprises a protective sleeve separating the interior chamber from the flow passage. The electric safety valve further comprises at least one compression spring rod coupled to a closure member capable of restricting or preventing fluid flow through the flow passage. A method includes actuating the electric actuator; the electric actuator being magnetically coupled to the closure member such that actuation of the electric actuator pivots the closure member.
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subjects 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
title Section-balanced electric safety valve and method of operating an electric safety valve
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