Pipeline laying apparatus
US5975802A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 2, 1997 |
| Grant date | Nov 2, 1999 |
| Priority date | — |
| Expiry date | Sep 2, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L1/23
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A subsea pipe laying system is mounted on a ship and comprises a fabrication station where lengths of pipe are welded together to form a pipeline. The pipeline is then guided to a pipe laying zone where including a straightener under the control of a tensioner/clamping arrangement the pipeline is straightened and laid on the sea bed. The straightener and the tensioner/clamps are mounted on a ramp which can be tilted whereas the fabrication zone is on the deck of the vessel. The pipeline can either be fabricated in a forward direction and then have its direction and movement reversed to lay over the stern or be fabricated in an aft direction and laid over the stern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.