Analysis of drilling cuttings for permittivity
US8602128B2 · kind B2 · utility
2Cited by
3References
17Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 29, 2011 |
| Grant date | Dec 10, 2013 |
| Priority date | — |
| Expiry date | May 9, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/24
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Systems and methods for analysis of drilling cuttings are described. Complex permittivity is measured of rock cutting samples obtained during drilling operations. The origin of the cuttings is known by flow rate analysis in the drilling system. Various means can be used for rock cutting dielectric measurement. For example, the dielectric measurement can be made by matching the unknown permittivity of the medium to be analyzed to the permittivity of known liquid mixtures by successive saturation and looking for a “zero-contrast” measurement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.