Stabilization of subsea riser pipes having free lower ends
US4221504A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 1978 |
| Grant date | Sep 9, 1980 |
| Priority date | — |
| Expiry date | Mar 15, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/30
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Apparatus for position stabilizing the lower end of an elongate duct, which is vertically disposable in an ocean and which is supported at its upper end, is described. The apparatus includes an elongate flexible tensile member which is disposable along the interior of the duct. The tensile member is adapted to be connected at one end thereof to a duct support structure and to extend through the duct. A weight of selected mass and size is connectible to the other end of the tensile member below the lower end of the duct. Means are connectible between the tensile member and the duct, at least adjacent the lower end of the duct, for establishing and maintaining a selected position of the tensile member relative to the duct.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.