Clay detection and quantification using low frequency electromagnetic measurements
US11499935B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 25, 2019 |
| Grant date | Nov 15, 2022 |
| Priority date | — |
| Expiry date | Oct 25, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/24
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Methods and systems are provided for clay detection, clay typing, and clay volume quantification using electromagnetic measurements on a porous media sample at a low frequency less than 5000 Hz. The electromagnetic measurements are used to determine and store permittivity data that characterizes permittivity of the porous media sample at the low frequency less than 5000 Hz. The low frequency electromagnetic measurements can be performed in a laboratory, at a wellsite or other surface location. The low frequency electromagnetic measurements are nondestructive, and the results indicate that the methods and systems are highly sensitive to the existence of clays.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.