Prediction of permeability from capillary pressure curves derived from nuclear magnetic resonance pore size distributions
US6008645A · kind A · utility
16Cited by
1References
7Claims
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Key dates
| Filing date | Mar 11, 1997 |
| Grant date | Dec 28, 1999 |
| Priority date | — |
| Expiry date | Mar 11, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V3/14
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Capillary pressure curves can be derived from nuclear magnetic resonance (NMR) pore size distributions. These derived capillary pressure curves can be used to derive the displacement pressure, the fractional bulk volume of mercury at infinite pressure and a geometrical factor. These factors can be used to accurately predict permeability from an NMR derived capillary pressure curve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.