Petrophysically-consistent calibration of full-tensor electromagnetic induction tools
US10036827B2 · kind B2 · utility
1Cited by
5References
13Claims
0Family size
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Key dates
| Filing date | Nov 18, 2015 |
| Grant date | Jul 31, 2018 |
| Priority date | — |
| Expiry date | May 19, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V13/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for calibrating an electromagnetic core analysis tool is disclosed. The method includes disposing a tilted test loop inside of or outside of a tool having more than one antenna. A uniform test pack, a layered test pack, and an effective media test pack are each disposed in the tool. A signal is induced in a receiver antenna in the tool when a second antenna is energized with a known current of a known frequency. The induced signal is measured and a calibration gain and offset is determined. A corrected signal is produced and compared with the determined signal based on a forward model.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.