ROV-deployable subsea wellhead protector
US6615923B1 · kind B1 · utility
22Cited by
23References
11Claims
0Family size
Inventors
Key dates
| Filing date | Jul 17, 2002 |
| Grant date | Sep 9, 2003 |
| Priority date | — |
| Expiry date | Jul 17, 2022 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/037
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A protector for placement over subsea wellheads. A main body is cylindrical, with an inner diameter of sufficiant size to fit over a subsea wellhead. One end of the main body has a cap across it. A vent and a pump-through port, which permits pumping in of corrosion inhibitors, is in the cap. The open end of the main body has an outwardly flaring skirt to help guide the protector into place over the wellhead. The main body is formed from polyurethane via molding or other suitable methods.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.