Riser with internal rotating flow control device
US10677004B2 · kind B2 · utility
0Cited by
4References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 9, 2015 |
| Grant date | Jun 9, 2020 |
| Priority date | — |
| Expiry date | Feb 20, 2036 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/064
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A riser pipe system for releasably securing a rotating flow control device internally within a riser string for use in offshore drilling can include a riser pipe section, a removable latch assembly for releasably securing the RFCD, and optionally, a removable seal assembly for sealing against the RFCD. The latch and seal assemblies are disposed within the riser pipe section and axially restrained by at least one removable retaining member. The latch assembly and seal assembly may be hydraulically or pneumatically actuated together or separately.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.