Permeability determination from NMR relaxation measurements for fluids in porous media
US5387865A · kind A · utility
74Cited by
5References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 11, 1993 |
| Grant date | Feb 7, 1995 |
| Priority date | — |
| Expiry date | Mar 11, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/50
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention is a method to rapidly determine the fluid-flow permeability of porous media with nuclear magnetic resonance (NMR). The method can be applied to measurements of permeability in fluid-saturated earth formations using NMR logging tools.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.