Wellbore exclusion fluid method and apparatus for downhole logging
US12398608B2 · kind B2 · utility
0Cited by
4References
20Claims
0Family size
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Key dates
| Filing date | Sep 30, 2022 |
| Grant date | Aug 26, 2025 |
| Priority date | — |
| Expiry date | Jan 28, 2043 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B23/0415
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
In some embodiments, a downhole logging tool configured for placement in a wellbore comprises a first magnet configured to activate a first volume of ferromagnetic fluid disposed between the downhole logging tool and the wellbore to achieve a first seal between a primary analysis region of the downhole logging tool and a wellbore fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.