Offshore well drilling system with nested drilling risers
US10329852B2 · kind B2 · utility
0Cited by
10References
19Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 6, 2015 |
| Grant date | Jun 25, 2019 |
| Priority date | — |
| Expiry date | Oct 6, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B19/004
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An offshore well system for a subsea well includes an internal riser tension device configured to apply tension to an internal riser and an external riser tension device configured to apply tension to an external riser such that the external riser is supported at least partially independent of the internal riser tension device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.