Method and apparatus for elevating a marine platform
US10428481B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 9, 2018 |
| Grant date | Oct 1, 2019 |
| Priority date | — |
| Expiry date | Jul 9, 2038 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02B2017/0056
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method of elevating the deck area of a marine platform (e.g., oil and gas well drilling or production platform) utilizes a specially configured sleeve support to support the platform legs so that they can be cut. Once cut, rams or jacks elevate the platform above the cuts. The sleeve support is then connected (e.g., welded) to the platform leg and becomes part of the structural support for the platform. In one embodiment, two sleeves are employed. In another embodiment, the jacks or rams elevate in two stages including a first stage wherein one sleeve elevates and the other sleeve does not elevate and a second stage wherein both sleeves elevate together.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.