Solid expandable tubular members formed from very low carbon steel and method
US7169239B2 · kind B2 · utility
9Cited by
129References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 16, 2003 |
| Grant date | Jan 30, 2007 |
| Priority date | — |
| Expiry date | May 16, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/5746
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A very low carbon steel alloy is provided for use in manufacturing tubular members such as oil country tubular goods. The tubular members may be radially expanded from at least twenty percent to forty percent. Sections or joints of casing formed from the steel alloy may be installed within a wellbore and radially expanded during completion of the wellbore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.