Multi-transient DC resistivity measurements
US8274288B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 4, 2006 |
| Grant date | Sep 25, 2012 |
| Priority date | — |
| Expiry date | Mar 22, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V3/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for measuring resistivity variations in the earth comprising passing a transient current between two source electrodes; measuring the transient current at the source electrodes; measuring the resultant transient voltage between at least one pair of receiver electrodes; estimating one or more processing functions for applying to the measured input current to provide a step current profile, and applying the same one or more processing functions to the measured voltage to provide an estimate of the step response voltage between the receivers, using both the step current and the estimated step response voltage to determine the resulting apparent earth resistance, and using the apparent earth resistance to determine the resistivity of the earth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.