Flexible/rigid riser system

Details Flexible/rigid riser system Flexible/rigid riser system

1993-09-07

1997-04-01

Taylor, Dennis L.

Hydraulic and earth engineering

Marine structure or fabrication thereof

166350, 285166, 405169, F16L 104

Patent

active

056159773

ABSTRACT:
A continuous bend flexible/rigid riser system is provided for coupling a subsea location to an offshore platform or vessel. The riser system comprises a first rigid pipe section coupled at its upper end to the platform. A plurality of intermediate pipe sections are mutually coupled end to end, and are coupled in series with the first rigid pipe section by means of a plurality of flexible couplings. The lower end of the last in the series of intermediate pipe sections is coupled to the subsea location. The flexible/rigid riser system reduces bending stresses transmitted along the riser by allowing angular displacement of the pipe sections with respect to one another.

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