GATE VALVE ASSEMBLY COMPRISING A SHEAR GATE
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United States of America Patent
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Issued Date -
Mar 3, 2016
app pub date -
Mar 14, 2014
filing date -
Mar 15, 2013
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Abstract
A gate valve assembly for shearing an elongated member and controlling a fluid flow through a through bore of the gate valve assembly. The through bore Is adapted for fluid communication with a well bore and is prepared for receiving the elongated member. The gate valve assembly comprises a gate element movably arranged transverse to the through bore between an open position in which a gate bore of the gate element communicates with the through bore and a closed position in which the through bore of the valve assembly is closed off. A shear gate is arranged in a recess in the gate element, the recess has an opening into the gate bore and is oriented transverse to the through bore, and the shear gate is movably arranged in the recess between a shear gate open position in which the gate bore is open and a shear gate closed position in which a cutting portion of the shear gate occupies the gate bore. The invention also comprises a method for shearing an elongated member arranged in a through bore of a gate valve assembly and closing the through bore.
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