Downhole magnet, downhole magnetic jetting tool and method of attachment of magnet pieces to the tool body
US11746622B2 · kind B2 · utility
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1References
19Claims
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Key dates
| Filing date | May 10, 2021 |
| Grant date | Sep 5, 2023 |
| Priority date | — |
| Expiry date | Oct 2, 2041 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B31/06
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A tool for suspending in a well retrieves various metal debris from the well, and includes an elongated tool body with a plurality of magnets included in a plurality longitudinal ridges which are circumferentially spaced. In the method a plurality of magnets can be positioned within openings, recesses, or pockets in each ridge, and held in place by one or more retaining plates, the tool being connected to a drill string and lowered into a well.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.