Casing removal tool and methods of use for well abandonment
US10689932B2 · kind B2 · utility
0Cited by
5References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 19, 2016 |
| Grant date | Jun 23, 2020 |
| Priority date | — |
| Expiry date | Nov 3, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B41/0078
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Systems and methods for removing casing from a wellbore including a casing removal tool that includes a tubular body configured to contain a thermite fuel mixture configured to initiate into a molten thermite fuel. The casing removal tool also includes a nozzle array having a plurality of nozzles positioned on an external surface of the tubular body. The nozzle array is configured to impinge the molten thermite fuel from within the tubular onto the wellbore casing. The casing removal tool also includes an orientation lug configured to anchor into a downhole orientation tool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.