Determination of oil saturation in reservoir rock using paramagnetic nanoparticles and magnetic field
US9133709B2 · kind B2 · utility
68Cited by
12References
15Claims
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Key dates
| Filing date | Nov 17, 2010 |
| Grant date | Sep 15, 2015 |
| Priority date | — |
| Expiry date | Oct 17, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A90/30
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Methods for detection of the presence and distribution of oil in subsurface formation are described herein. The present invention involves injection of an aqueous dispersion of the nanoparticles into the potentially oil containing subsurface formation, followed by a remote detection of the oscillation responses of the nanoparticles in the oil/water interfaces in the reservoir rock by applying magnetic field.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.