Constant tension steel catenary riser system
US6824330B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 19, 2002 |
| Grant date | Nov 30, 2004 |
| Priority date | — |
| Expiry date | Oct 3, 2022 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B19/004
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A steel catenary riser (SCR) system includes a tensioning mechanism on a floating facility that controllably applies a substantially constant tension to an SCR that is fluidly coupled to the facility by a flexible jumper conduit. More specifically, the system includes a tensioning device located on the floating facility; and an SCR having an upper portion, which, in the preferred embodiment, extends above the surface of the body of water. The upper portion of the SCR is connected to the tensioning device by a connection element, such as a cable, chain, rope, or wire, whereby tension is controllably applied from the tensioning device to the SCR. A flexible jumper conduit is fluidly connected between the upper portion of the SCR and the floating facility for conducting fluid from the SCR to the floating facility. In a preferred embodiment, the connection element is attached to the upper portion of the SCR at an attachment point, and the flexible jumper conduit is fluidly coupled to the SCR near the attachment point.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.