Hinge-over subsea template production system
US5722796A · kind A · utility
Inventors
Key dates
| Filing date | Apr 1, 1997 |
| Grant date | Mar 3, 1998 |
| Priority date | — |
| Expiry date | Apr 1, 2017 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/017
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A subsea system comprises a central template that is piled into the seabed and carried wing modules that are connected to the template by hinges. This allows the template to be deployed and the wing modules attached subsequently or for the wing modules to be folded upwardly into a collapsed disposition as the template is deployed. In either case, the template can be deployed through the moonpool of a vessel and does not require a heavy lifting barge. An example of a module usable with the template is a hinge-over guidebase which can allow the commencement of drilling of a well while a manifold and christmas tree are being constructed for subsequent attachment. Thus, installation of the system is easy and drilling of the well can commence quickly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.