Safety device for retrieving component within wellhead
US9187969B2 · kind B2 · utility
3Cited by
7References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 23, 2014 |
| Grant date | Nov 17, 2015 |
| Priority date | — |
| Expiry date | Jul 23, 2034 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/12
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A system is provided that include a safety device configured to mount in a mineral extraction system and block axial movement of a plug in the mineral extraction system while the plug is released from a retainer. The safety device may be a sleeve configured to receive screws or other retention mechanism in a tubular. A method is provided that includes installing a plug safety catch into a tubular of a mineral extraction system in which the plug is configured to block axial movement of a plug in response to a pressure differential while the plug is released from a mount position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.