MPD-capable flow spools
US9970247B2 · kind B2 · utility
11Cited by
12References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 1, 2014 |
| Grant date | May 15, 2018 |
| Priority date | — |
| Expiry date | May 1, 2034 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B21/08
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
This disclosure includes flow spool riser segment assemblies that are suitable for managed pressure drilling (MPD) and that can be lowered (e.g., when connected to other riser segment assemblies) through a rotary of a drilling rig. Some embodiments are configured to have portions of the flow spool connected (e.g., without welding) below the rotary.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.