Method and apparatus for removing unexpanded shoe
US9080402B2 · kind B2 · utility
0Cited by
3References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 4, 2014 |
| Grant date | Jul 14, 2015 |
| Priority date | — |
| Expiry date | Mar 4, 2034 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/103
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method of removing an unexpanded shoe comprises disposing a tool in a wellbore. The tool includes a latch assembly and a mill body. The latch assembly is engaged with a shoe assembly that is coupled to the wellbore by a tubular having an expanded portion and an unexpanded portion. The mill body is rotated relative to the latch assembly so as to mill the unexpanded portion of the tubular until the shoe assembly is uncoupled from the wellbore. The tool and the shoe assembly are then pulled through the expanded portion and out of the wellbore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.