Method for determining the true boiling points of complex hydrocarbon fluids using nuclear magnetic resonance
US11415567B2 · kind B2 · utility
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Key dates
| Filing date | Mar 5, 2019 |
| Grant date | Aug 16, 2022 |
| Priority date | — |
| Expiry date | Mar 28, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/448
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Nuclear magnetic resonance (NMR) relaxation and/or diffusion measurements are used to deduce fluid compositional information such as a chain-length distribution, which may then be used to predict the true boiling points (TBP) of a sample of a complex hydrocarbon fluid mixture, such as a crude oil. The NMR measurements may be considered a fast and portable proxy measurement in estimating fluid TBP distributions in lieu of distillation methods, or the simulated distillation by gas chromatography.
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