Blowout preventer with wide flange body
US11098550B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 2017 |
| Grant date | Aug 24, 2021 |
| Priority date | — |
| Expiry date | Sep 29, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/0355
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Blowout preventers having bodies without flanged necks are provided. In one embodiment, a blowout preventer stack includes first and second blowout preventers having independent and separable main bodies, each including a bore and a ram cavity transverse to the bore. The lower end of the main body of the first blowout preventer is fastened directly to an upper end of the main body of the second blowout preventer without a flanged neck extending the bore between the ram cavities of the first and second blowout preventers. In some instances, the main bodies of the first and second blowout preventers include external connection flanges that extend laterally from ram cavity body portions of the main bodies so as to enable connection of the two main bodies along the sides of the main bodies away from their bores. Additional systems, devices, and methods are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.