Safety device for an oil well and associated safety installation

Safety device for an oil well and associated safety installation

The invention relates to a safety device for an oil well and to the associated safety installation. The inventive device comprises a valve housing (40) which defines a fluid flow passage (52). The aforementioned housing (40) comprises a valve (48) which is used to seal the passage and which can move...

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Hauptverfasser: GIRARDI JOSEPH, MILLET FRANCOIS, MICHAUD CHRISTOPHE
Format: Patent
Sprache:eng
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 GIRARDI JOSEPH
MILLET FRANCOIS
MICHAUD CHRISTOPHE
description The invention relates to a safety device for an oil well and to the associated safety installation. The inventive device comprises a valve housing (40) which defines a fluid flow passage (52). The aforementioned housing (40) comprises a valve (48) which is used to seal the passage and which can move between an open position and a closed position and means for permanently biasing the valve towards the closed position thereof. The housing (40) also comprises releasable means (54) for connecting same to a working line with tubing that is intended to move the housing (40) in the conduit. In addition, the device comprises retractable means (42) for supporting the valve (58) in the open position and hydraulic means (44, 46) for actuating the support means (42) in order to activate same upon reception of a valve open control signal. The aforementioned support means (42) and actuation means (44, 46) are solidly connected to the housing (40) such that they can be moved simultaneously under the control of the line.
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The inventive device comprises a valve housing (40) which defines a fluid flow passage (52). The aforementioned housing (40) comprises a valve (48) which is used to seal the passage and which can move between an open position and a closed position and means for permanently biasing the valve towards the closed position thereof. The housing (40) also comprises releasable means (54) for connecting same to a working line with tubing that is intended to move the housing (40) in the conduit. In addition, the device comprises retractable means (42) for supporting the valve (58) in the open position and hydraulic means (44, 46) for actuating the support means (42) in order to activate same upon reception of a valve open control signal. 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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 Safety device for an oil well and associated safety installation
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