Metal-to-metal wellhead seal for rough casing
US5183268A · kind A · utility
10Cited by
15References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 30, 1991 |
| Grant date | Feb 2, 1993 |
| Priority date | — |
| Expiry date | Apr 30, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S285/917
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An annular metallic seal element for wellhead housings to provide a fluid-tight seal with a well casing that will withstand extreme temperatures and high pressures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.