Estimating permeability without determinating a distribution of relaxation times
US6559639B2 · kind B2 · utility
10Cited by
10References
15Claims
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Key dates
| Filing date | Sep 16, 1999 |
| Grant date | May 6, 2003 |
| Priority date | — |
| Expiry date | Sep 16, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/4625
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A permeability estimation technique for use with spin echo signals that are received from a sample includes summing indications of the amplitudes of the spin echo signals. The results of the summing are used to determine an indication of a permeability of the sample, without using a distribution of relaxation times in the determination. The products of indications of the amplitudes of the spin echo signals may be summed, and the results of the summing may be used to determine an indication of a permeability of the sample, without using a distribution of relaxation times in the determination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.