Plug for tubulars
US6474414B1 · kind B1 · utility
77Cited by
15References
47Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2000 |
| Grant date | Nov 5, 2002 |
| Priority date | — |
| Expiry date | Mar 9, 2020 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/14
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A molten metal plug which expands upon solidification can be used to form a pressure resistant seal in a tubular such as is used in oil and gas exploration and production.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.