Apparatus for connecting underwater flow line hubs

Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – Submerging – raising – or manipulating line of pipe or cable...

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Details

166340, 166347, F16L 104

Patent

active

044772050

ABSTRACT:
A temporary hub cover for the hubs of flow lines, hydraulic lines, and electrical conduits and the mating hubs of the underwater production unit includes a body enclosing the hub, plungers within the body for releasably engaging into detents on the hub to hold the cover on the hub, and a trigger mechanism operable from a remote location to release the engagement between the cover and hub whereby the cover can be removed from the hub. A connector tool is lowered through the water and supports means for operating the trigger mechanism upon downward movement of the connector tool.

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"Deepwater Pipeline Connectors--A Subsystem of the Submerged Production System," Sinclair et al., Offshore Technology Conference, paper No. OTC 2526, May 1976.

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