Method and apparatus for replacing a tendon flex bearing on a tension leg platform
US9623934B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 27, 2016 |
| Grant date | Apr 18, 2017 |
| Priority date | — |
| Expiry date | Jan 27, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63B2021/505
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for replacing a tendon flex bearing on a tension leg platform includes installing a tendon tensioning tool on the Length Adjustment Joint (LAJ) of a tendon and providing a supplemental buoyancy module on the tendon. The tendon tensioning tool is used to disengage the slips from the top tendon connector. The buoyancy of the supplemental buoyancy module may then be adjusted to support the tendon whereupon the tendon tensioning tool may be disengaged permitting removal and replacement of the tendon flex bearing. Following installation of the new (or refurbished) flex bearing, the steps of the procedure may be reversed to return the tendon to its normal operating state. In certain embodiments, top clamp actuation means is provided in the tendon tensioning tool for removing slips from the top clamp.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.