NMR logging of miscible displacement
US8680858B2 · kind B2 · utility
1Cited by
16References
19Claims
0Family size
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Key dates
| Filing date | Jun 29, 2009 |
| Grant date | Mar 25, 2014 |
| Priority date | — |
| Expiry date | Jun 24, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V3/32
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
NMR logging in a wellbore is used to monitor an oil reservoir during oil recovery by miscible displacement. Diffusivity distributions found by NMR logging indicate whether one or two phases are present and composition of residual oil. Operation of the oil recovery procedure may be maintained or modified in response to monitoring of the reservoir.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.