Riser pipe section equipped with a locking ring arranged between the main tube and the auxiliary line
US10024120B2 · kind B2 · utility
0Cited by
2References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 16, 2015 |
| Grant date | Jul 17, 2018 |
| Priority date | — |
| Expiry date | Apr 16, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B17/18
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present invention relates to a riser section (4) equipped with an external locking ring (11). Locking ring (11) cooperates with a male connector element (9) and a female connector element (8) by means of a series of studs. The invention also relates to a riser consisting of several sections (4) and to the use of the riser for carrying out an offshore drilling operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.