EP 2726767 A2 20140507 - INITIATION OF LIGHTWEIGHT FLEXIBLE PIPELINES AND UMBILICALS
Title (en)
INITIATION OF LIGHTWEIGHT FLEXIBLE PIPELINES AND UMBILICALS
Title (de)
EINSETZEN VON LEICHTGEWICHTIGEN FLEXIBLEN ROHRLEITUNGEN UND UMBILICALS VERSORGUNGSLEITUNGEN
Title (fr)
MISE EN CHANTIER DE PIPELINES ET OMBILICAUX SOUPLES LÉGERS
Publication
Application
Priority
- GB 201111274 A 20110701
- EP 2012062780 W 20120629
Abstract (en)
[origin: GB2492414A] The invention relates to the initiation of laying of an elongate flexible riser / pipeline 10 on the sea bed 16, wherein a termination head 12 is provided at an end of the pipeline, the termination head connected in turn to an anchor 14, wherein a sag bend curvature 24 is imparted to the pipeline by adding weight 30 locally to the pipeline at a sag bend region, wherein the termination head and portion of adjoining pipeline 26 are oriented towards the horizontal while above the seabed. Ideally, an installation vessel 28 applies tension to the riser / pipeline during the start of the laying process, which coupled with the addition of ballasts, causes the end region of the pipeline to curve towards the horizontal, parallel to the sea floor. The weights may take the form of individual ballast modules 30, or a thickened, possibly denser, region of the pipe end itself. Other independent claims relate to different stages of the initial pipe laying process.
IPC 8 full level
F16L 1/16 (2006.01); F16L 1/235 (2006.01); F16L 1/24 (2006.01)
CPC (source: EP GB)
E21B 17/015 (2013.01 - GB); F16L 1/16 (2013.01 - EP); F16L 1/163 (2013.01 - GB); F16L 1/235 (2013.01 - EP); F16L 1/24 (2013.01 - EP GB)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
GB 201111274 D0 20110817; GB 2492414 A 20130102; GB 2492414 B 20130703; CA 2840274 A1 20130110; DK 201470013 A 20140114; EP 2726767 A2 20140507; WO 2013004643 A2 20130110; WO 2013004643 A3 20130228
DOCDB simple family (application)
GB 201111274 A 20110701; CA 2840274 A 20120629; DK PA201470013 A 20140114; EP 12737732 A 20120629; EP 2012062780 W 20120629