Expanding tubing
US7172027B2 · kind B2 · utility
24Cited by
163References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2003 |
| Grant date | Feb 6, 2007 |
| Priority date | — |
| Expiry date | Nov 29, 2023 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/105
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method of expanding tubing downhole comprises providing a section of expandable tubing of a first diameter, and axially compressing the tubing to induce buckling, such that the buckled portion describes a larger second diameter. The resulting diametric expansion may be utilised to anchor or seal the tubing within a larger bore. The buckled portion may be used to anchor the tubing within the wellbore prior to expansion of the length of the tubing into the wellbore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.