Underwater pipeline connection joined to a riser

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

Reexamination Certificate

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Details

C405S169000, C405S224300, C166S346000, C166S367000

Reexamination Certificate

active

06854930

ABSTRACT:
The present invention relates to an installation providing a bottom-to-surface connection for an undersea pipe resting on the sea bottom, in particular at great depth, the installation being of the hybrid tower type having a static base placed on the sea bottom. In the installation of the present invention, said pipe resting on the sea bottom is connected by a flexible pipe element constituting a bend to a vertical riser whose bottom end is held in fixed position relative to said base.

REFERENCES:
patent: 3517737 (1970-06-01), Petersen
patent: 3782458 (1974-01-01), Slack
patent: 4529334 (1985-07-01), Ortloff
patent: 4906137 (1990-03-01), Maloberti et al.
patent: 6109833 (2000-08-01), Savy
patent: 507.672 (1919-12-01), None
patent: WO 9725561 (1997-07-01), None
patent: WO 0049267 (2000-08-01), None

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