Acoustic modified NMR (AMNMR)
US8344726B2 · kind B2 · utility
1Cited by
13References
13Claims
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Key dates
| Filing date | Feb 12, 2009 |
| Grant date | Jan 1, 2013 |
| Priority date | — |
| Expiry date | Aug 10, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V3/32
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Many reservoirs of interest include heavy oil. In such reservoirs, NMR measurements have difficulty distinguishing between heavy oil and water in the formation. An acoustic signal is used to modify the relaxation time distribution of water and heavy oil in opposite directions and thus increase the separability of the distributions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.