Retrieval of subsea production and processing equipment
US9605516B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 31, 2016 |
| Grant date | Mar 28, 2017 |
| Priority date | — |
| Expiry date | Aug 31, 2036 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B41/0007
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method includes disconnecting subsea equipment containing a first fluid from an installation in a subsea environment, wherein the first fluid is a produced fluid that includes produced hydrocarbons. Furthermore, the method also includes raising the disconnected subsea equipment from the subsea environment and controlling a fluid pressure of the first fluid in the subsea equipment with an accumulator device while raising the subsea equipment from the subsea environment, wherein the accumulator device includes first and second adjustable accumulator chambers and a movable pressure boundary separating the first and second adjustable accumulator chambers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.