Safety device for a fluid exploration well and safety installation for a fluid exploration well

摘要

Safety device for a fluid well and safety facility for a fluid well The present invention relates to a safety device for a fluid well comprising a housing of valve (40) delimiting a fluid circulation passageway (52). housing (40) comprises a shut-off valve (58) movable between an opening position and a closing position, and means for permanently requesting the valve to its closing position. the housing (40) comprises releasable means (54) for connecting to a cable work line for displacing the housing (40) in the conduit, the device comprises means (42) for maintaining the valve (58) in its open position and hydraulic means (44, 46) for driving maintenance means (42) for activating such means (42) when a valve opening command signal is received. the maintenance means (42) and the drive means (44, 46) are integral with the housing (40) for their simultaneous displacement under the command of the line.