EP 1529149 A2 20050511 - OFFSHORE WELL PRODUCTION RISER
Title (en)
OFFSHORE WELL PRODUCTION RISER
Title (de)
OFFSHOREPRODUKTIONSRISER
Title (fr)
TUBE ASCENSEUR DE PUITS DE PRODUCTION DE PETROLE MARIN
Publication
Application
Priority
- US 0324298 W 20030805
- US 21396302 A 20020807
- US 21396602 A 20020807
- US 62604403 A 20030724
Abstract (en)
[origin: WO2004015237A2] An offshore oil well riser system that compensates for the motions of an associated floating platform comprises a vertical pipe section supported by the floating vessel and extending downward from the vessel substantially perpendicular to the sea floor, and a horizontal pipe section connected to the associated sub-sea well equipment and extending away from the equipment substantially parallel to the sea floor. A angled elbow pipe connects the horizontal pipe to the vertical pipe. At least one of the horizontal and the vertical pipes incorporates a flexing portion comprising a plurality of recurvate sections of pipe connected end-to-end with alternating curvatures. In one embodiment, the central axis of the flexing portion lies in a single plane and takes a sinusoid path. In another embodiment, the central axis of the flexing portion takes a three dimensional helical path.
IPC 1-7
IPC 8 full level
E21B 17/01 (2006.01); E21B 17/08 (2006.01); E21B 19/00 (2006.01)
CPC (source: EP US)
E21B 17/015 (2013.01 - EP US); E21B 17/017 (2013.01 - EP US); E21B 17/085 (2013.01 - EP US); E21B 19/006 (2013.01 - EP US)
Citation (search report)
See references of WO 2004015237A2
Designated contracting state (EPC)
DK FR GB IE NL
DOCDB simple family (publication)
WO 2004015237 A2 20040219; WO 2004015237 A3 20040610; AU 2003258024 A1 20040225; AU 2003258024 A8 20040225; EP 1529149 A2 20050511; US 2004163817 A1 20040826
DOCDB simple family (application)
US 0324298 W 20030805; AU 2003258024 A 20030805; EP 03784891 A 20030805; US 62604403 A 20030724