Estimating and displaying molecular size information of a substance
US9201158B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 24, 2012 |
| Grant date | Dec 1, 2015 |
| Priority date | — |
| Expiry date | Aug 22, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/448
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Estimating and displaying information about the size of molecules within a substance from nuclear magnetic resonance (NMR) maps and/or logs. Methods include utilizing a relationship between the molecular size (e.g., mean chain length), and either a moment of diffusion or a relaxation distribution, to create a scale on a two-dimensional map. In one case, applying the relationship between the molecular size, and either a moment of diffusion or a relaxation distribution, to one-dimensional diffusion or relaxation distributions for the purpose of estimating the mean chain length of molecules within the substance. In another case, a method includes determining mean chain lengths of molecules within a substance and providing a one-dimensional NMR log showing the mean chain lengths at a plurality of depths. In some cases, the NMR log includes actuatable regions for examining two-dimensional NMR maps or chain length distributions of the substance corresponding with distinct depths of the substance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.