Debris cap mechanism for a subsea wellhead

Details Debris cap mechanism for a subsea wellhead Debris cap mechanism for a subsea wellhead

1975-07-08

1976-07-27

Purser, Ernest R.

Static structures (e.g., buildings)

With entrance for persons or objects in horizontal or...

166 5, E04D 2914

Patent

active

039711714

ABSTRACT:
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.

REFERENCES:
patent: 2037114 (1936-04-01), Bonsall
patent: 2799476 (1957-07-01), Bielstein
patent: 3063500 (1962-11-01), Logan
patent: 3093097 (1963-06-01), Rosenfeld
patent: 3230844 (1966-01-01), Isaacs
patent: 3247672 (1966-04-01), Johnson
patent: 3352357 (1967-11-01), Van Eek
patent: 3461957 (1969-08-01), West

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