Mechanism of the protective cover of a head of the well as marine -

摘要

A debris cap mechanism for use in connection with a housing to enclose and protect a re-entry hub of a subsea well features frame means adapted for engaging the housing, first sealing means adapted to be disposed between the frame means and the housing and operative to inhibit the passage of liquid therebetween, lid means movable between closed and opened positions respectively and connected to the frame means in such a manner that clear access to the re-entry hub is possible when the lid means is in its open position, and second sealing means adapted to be disposed between the frame means and the re-entry hub and operative to inhibit the passage of liquid therebetween, the frame means being movable and operative for moving the lid means between its closed and its open positions.