Flexible riser system

Details Flexible riser system Flexible riser system

1987-06-03

1988-12-27

Corbin, David H.

Hydraulic and earth engineering

Subterranean or submarine pipe or cable laying, retrieving,...

Submerging, raising, or manipulating line of pipe or cable...

166343, 166367, 405195, E21B 43013, F16L 104

Patent

active

047937378

ABSTRACT:
A flexible riser 10 has a lower connector 11 which is moved laterally over the seabed by a pull-in sled 7 under a mid-water support buoy 3 to connect it to a connection point 17 on subsea equipment 1. The riser 10 is attached at a point part way along its length to buoy 3. This is done at one side of the buoy prior to construction vessel 13 laying the riser over the buoy and connecting the upper connector 24 to a production vessel 2 positioned over the subsea equipment. Attachment is done by guiding the riser pipe into a channel 36, a projection 20 on the riser engaging the channel against lowering of the pipe. A upper connector of the riser may include a single pivotal arm and a single offset guide post to maintain its orientation while it is being pulled into engagement with a mating part on the production vessel.

REFERENCES:
patent: 4266886 (1981-05-01), Milton
patent: 4277202 (1981-07-01), Archambaud et al.
patent: 4400109 (1983-08-01), Gentry et al.
patent: 4400110 (1983-08-01), Beynet et al.
patent: 4448568 (1984-05-01), Gentry et al.
patent: 4490073 (1984-12-01), Lawson
"Dynamic Flexible Risers", Coflexip Brochure, Sep. 1985.
Offshore Engineer, Feb. 1985, p. 31.

Affiliated with

Also associated with

Rating

Flexible riser system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Flexible riser system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flexible riser system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-865552