Extraction system for removable marine footing
US8011857B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 26, 2009 |
| Grant date | Sep 6, 2011 |
| Priority date | — |
| Expiry date | Dec 19, 2029 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02B2017/0082
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present invention describes an extraction system (100,100a) for expediting removal of a footing (105) that is embedded in a seabed or marine floor. The extraction system provides a supply of pressurized fluid (140) to a chamber from where the pressurized fluid exudes through porous members (122,122a, etc) located on the base (114) of the footing (105). When an uplifting force is applied to the footing (105) for its removal, the pressurized fluid (140) exudes out through the porous member (122,122a, etc.) to compensate or reduce suction induced beneath the footing, without fluidizing or channeling of the seabed soil, thereby expediting removal of the footing (105).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.