Optimization of magnet arrangement for nuclear magnetic resonance well logging tools
US10408898B2 · kind B2 · utility
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Key dates
| Filing date | Mar 31, 2016 |
| Grant date | Sep 10, 2019 |
| Priority date | — |
| Expiry date | Sep 30, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V3/32
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method to produce a magnet arrangement, the method having steps of selecting a depth of investigation to be achieved by a downhole tool, identifying a desired magnetic field strength at the depth of investigation, producing a set of magnets to be incorporated into the downhole tool, sorting the set of magnets based on a quality of each of the magnets and optimizing the set of magnets such that the quality of each of the magnets results, when arranged, in the desired magnetic field strength at the depth of investigation and wherein the optimizing minimizes a cost function of the set of magnets produced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.