Marine riser structural core connector

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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166345, 405170, E21B 4104

Patent

active

046472541

ABSTRACT:
A subsea connector system for connecting the lower end of a structural core of a marine riser to a base which has been preset on the marine bottom. The box member of the connector system forms an integral part of a tapered section which, in turn, forms the lower end of the riser. The connector system, in a preferred embodiment, incudes a self-contained source of hydraulic fluid under pressure which actuates the connector to a locked position upon command. The connector also includes a back-up means for remotely locking the connector and three separate means for remotely unlocking the connector.

REFERENCES:
patent: 2962096 (1960-11-01), Knox
patent: 3500906 (1970-03-01), Petersen
patent: 3710859 (1973-01-01), Hanes et al.
patent: 4182584 (1980-01-01), Panicker et al.
patent: 4478287 (1984-10-01), Hanes
OTC 4512, Deepwater Production Riser, Panicker and Yancey, presented at the 15th Annual Offshore Technology Conference, Houston, TX, May 2-5, 1983.

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