Hydraulic blowout preventer assembly for production wellhead
US6260817A · kind A · utility
13Cited by
7References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 29, 1999 |
| Grant date | Jul 17, 2001 |
| Priority date | — |
| Expiry date | Oct 29, 2019 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/062
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
In the hydraulic blowout preventer of an integral production wellhead, the ram chambers and hydraulic fluid supply line are both buried or formed in the side wall of the blowout preventer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.