Hydraulic and earth engineering – Marine structure or fabrication thereof
Patent
1998-08-03
2000-08-29
Lillis, Eileen Dunn
Hydraulic and earth engineering
Marine structure or fabrication thereof
405169, 405171, 4052242, F21B 43013, F16L 112
Patent
active
061098337
ABSTRACT:
A device for transferring fluid between equipment on the seabed and a surface unit. At least one flexible pipe extends in a catenary curve. An intermediate buoyancy and support member associated with the pipe splits the pipe into two parts, an upper part and a lower part. The intermediate member imparts to a region of the upper part a concavity facing the seabed. A yoke on the pipe and a cable from the yoke retain at least one region of the lower part of the pipe. The cable is connected to a fixed member on the seabed for tensioning the lower part of the pipe. The cable and the fixed member impart a bend to the region of the lower part of the pipe, the concavity of which faces the equipment on the seabed. The intermediate member is connected to the fixed member. The cable between the lower part of the pipe and the fixed member has a length at least equal to the minimum bend radius of the lower part of the flexible pipe.
REFERENCES:
patent: 4650431 (1987-03-01), Kentosh
patent: 4906137 (1990-03-01), Maloberti et al.
patent: 5505560 (1996-04-01), Brown et al.
patent: 5639187 (1997-06-01), Mungall et al.
Coflexip
Lagman Frederick L.
Lillis Eileen Dunn
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