Connector for steel catenary riser to flexible line without stress-joint or flex-joint
US9074428B2 · kind B2 · utility
3Cited by
13References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 17, 2011 |
| Grant date | Jul 7, 2015 |
| Priority date | — |
| Expiry date | Feb 11, 2032 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B17/012
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A flexible element in a basket-like structure supports a Steel Catenary Riser (SCR) on a subsurface buoy or “artificial seabed.” A riser collar transfers the tension load of riser to a compressive load on the radial bearing. Relative motion between the subsurface buoy and the riser is accommodated by the flexible element. A flexible jumper is connected to the riser for fluid transfer. Motions of the riser relative to the subsurface buoy are accommodated by the flexible jumper. In this way, a transition from an SCR to a flexible jumper may be accomplished without the need for either a stress-joint or a flex-joint.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.