Subsea slanted wellhead system and BOP system with dual injector head units
US9903172B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 10, 2015 |
| Grant date | Feb 27, 2018 |
| Priority date | — |
| Expiry date | Nov 10, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/063
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A wellbore intervention tool conveyance system includes an upper pipe injector disposed in a pressure tight housing. The upper injector has a seal element engageable with a wellbore intervention tool and disposed below the injector. The upper housing has a coupling at a lower longitudinal end. A lower pipe injector is disposed in a pressure tight housing, the lower housing has well closure elements disposed above the lower pipe injector. The lower housing is configured to be coupled at a lower longitudinal end to a subsea wellhead. The lower housing is configured to be coupled at an upper longitudinal end to at least one of (i) a spacer spool disposed between the upper pipe injector housing and the lower pipe injector housing, and (ii) the lower longitudinal end of the upper pipe injector housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.