Method and apparatus for expanding and separating tubulars in a wellbore
US7373990B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2004 |
| Grant date | May 20, 2008 |
| Priority date | — |
| Expiry date | May 5, 2025 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/106
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Embodiments of the present invention provide an apparatus and method for expanding a tubular. In one aspect, embodiments of the prevent invention provide an expander tool having at least two expansion members radially extendable from the expander tool into contact with a surrounding inside surface of the tubular, the at least two expansion members radially extendable at different times and axially spaced after radially extending. In another aspect, embodiments include a method for isolating a first portion of a wellbore from a second portion of a wellbore comprising locating an expandable tubular within the wellbore between the first and second portions, the expandable tubular having a weakened portion therein, isolating the first portion from the second portion of the wellbore, and expanding the expandable tubular proximate to the weakened portion to sever the expandable tubular.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.