GATE VALVE ASSEMBLY COMPRISING A SHEAR GATE

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 ele...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	HOULGRAVE BOB, SKEELS HAROLD BRIAN
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 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.