LOWER STACK ASSEMBLY OF A BLOW-OUT PREVENTER FOR A HYDROCARBON EXTRACTION WELL AND METHOD THEREOF

LOWER STACK ASSEMBLY OF A BLOW-OUT PREVENTER FOR A HYDROCARBON EXTRACTION WELL AND METHOD THEREOF

A lower stack assembly of a blowout preventer for a hydrocarbon extraction well includes a safety function that can be hydraulically activated to rapidly cut off a pipeline section. The assembly includes a first valve and a first fluidic connection connecting the first valve and the least one safety...

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Hauptverfasser: BUFFARINI, Graziano, FORTUNATO, Vito
Format: Patent
Sprache:eng ; fre ; ger
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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creator BUFFARINI, Graziano
FORTUNATO, Vito
description A lower stack assembly of a blowout preventer for a hydrocarbon extraction well includes a safety function that can be hydraulically activated to rapidly cut off a pipeline section. The assembly includes a first valve and a first fluidic connection connecting the first valve and the least one safety function, so that the first valve selectively cuts off a flow of fluid directed towards the safety function. The assembly further includes a port operatively connected to the first valve, cooperating with a remotely operated vehicle to transmit a pilot signal to the first valve, an accumulator housing pressurized fluid, and a second fluidic connection. By cooperating with the first valve, the accumulator supplies pressurized fluid to the safety function to activate it. The second fluidic connection connects the accumulator and the first valve, so that the second fluidic connection remains operative during the entire working life of the assembly.
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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 LOWER STACK ASSEMBLY OF A BLOW-OUT PREVENTER FOR A HYDROCARBON EXTRACTION WELL AND METHOD THEREOF
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