Configurable subsea tree master valve block
US9765593B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 30, 2015 |
| Grant date | Sep 19, 2017 |
| Priority date | — |
| Expiry date | Dec 3, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/047
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method of manufacturing a configurable pre-machined forging for use with a multiple bore tubing hanger or a mono bore tubing hanger includes providing a configurable common master valve block with a main bore along a main central axis. After providing the configurable common master valve block, a target subsea assembly is identified that has a mono bore subsea completion with a production bore along a central axis of a tubing hanger, or a multiple bore subsea completion with the production bore offset from the central axis of the tubing hanger. If the target subsea assembly has the mono bore subsea completion, the machining of a lower interface of the common master valve block is centered around the main central axis. If the target subsea assembly has the multiple bore subsea completion, the machining has an eccentric interface axis that is parallel to, and offset from, the main central axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.