Technique for determining properties of earth formations using dielectric permittivity measurements
US7363160B2 · kind B2 · utility
26Cited by
14References
30Claims
0Family size
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Key dates
| Filing date | Sep 23, 2005 |
| Grant date | Apr 22, 2008 |
| Priority date | — |
| Expiry date | Oct 2, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A90/30
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Techniques for determining formation characteristics use measurements of dielectric permittivity at a number of frequencies. Determined characteristics include the vertical and horizontal formation dielectric constant and conductivity, the formation water conductivity, the water saturation, the cementation and the saturation exponents. In laminated formations these profiles can be determined for each lamina. Also, formation dielectric properties are used in determination of the rock type.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.