EP 2516249 A1 20121031 - A HANG-OFF SYSTEM AND A HANG-OFF STRUCTURE
Title (en)
A HANG-OFF SYSTEM AND A HANG-OFF STRUCTURE
Title (de)
SCHLEPPSEILSYSTEM UND SCHLEPPSEILSTRUKTUR
Title (fr)
SYSTÈME DE MISE EN PENDANT ET STRUCTURE DE PENDANT
Publication
Application
Priority
- DK PA200901376 A 20091223
- DK 2010050324 W 20101126
Abstract (en)
[origin: WO2011076210A1] The invention relates to a hang-off system for a offshore structure, e.g. for transporting hydrocarbons from a well at seabed (1) to a vessel (3) at sea surface. The hang-off system comprises a floating, moored weathervaning vessel (3) with a turret (11) wit a hang-off structure (8). The hang-off system (8) further comprises at least one flexible transporting unit (2) hanging from the hang-off structure (8). The turret (11) comprises a bearing and swivel system (5,9) connected to or integrated with the hang-off structure (11). The bearing and swivel system (5,9) comprises a centre axis (4), the flexible transporting unit (2) hangs-off from a hang-off connecting point (7) to a subsea connection point (1) in a structural relation such that a vector extending from the subsea connecting point (1) to the hang-off connection point (7) has a vertical and a horizontal component, and the horizontal component is perpendicular to a hang-off vertical plane extending through the centre axis of the bearing and swivel system. The hang-off vertical plane separates the hang-off structure (8) in a flexible transporting unit (2) heading part and an opposite part. The flexible transporting unit (2) heading part is horizontally closer to the subsea connection point (1) than the opposite part. The hang-off connecting point (7 is arranged in the opposite part of the hang-off structure (8). The hang-off system of the invention results in a reduced risk of subjecting the flexible transporting unit(s) (2) to high wear, to bending with damaging curvature and/or to over stretching of the flexible transporting unit (2).
IPC 8 full level
B63B 21/50 (2006.01)
CPC (source: EP)
B63B 21/507 (2013.01)
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)
WO 2011076210 A1 20110630; AU 2010335657 A1 20120705; AU 2010335657 B2 20140807; BR 112012015463 A2 20160412; BR 112012015463 B1 20200825; CN 102811902 A 20121205; CN 102811902 B 20160525; EP 2516249 A1 20121031; EP 2516249 A4 20171108; EP 2516249 B1 20190102; IN 5240DEN2012 A 20151023; MY 165258 A 20180315
DOCDB simple family (application)
DK 2010050324 W 20101126; AU 2010335657 A 20101126; BR 112012015463 A 20101126; CN 201080059245 A 20101126; EP 10838714 A 20101126; IN 5240DEN2012 A 20120613; MY PI2012002771 A 20101126