Downhole fishing tool
US11053771B2 · kind B2 · utility
3Cited by
25References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 2, 2019 |
| Grant date | Jul 6, 2021 |
| Priority date | — |
| Expiry date | Jun 2, 2039 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/10
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An oil or gas well fishing tool (60). The downhole fishing tool (60) has a receptacle (61) that is open at one end. The tool also has deployment tool engaging means (62), located on the opposite end of the receptacle (61) to the one end. The tool further has a layer of an alloy (64) provided on the interior surface of the receptacle (61). The alloy is a eutectic alloy and/or a bismuth alloy. The tool further comprises heating means (65) to heat the alloy (64) so that it melts and can flow over any object received within the receptacle (61).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.