Subsurface conductivity imaging systems and methods
US7023213B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 10, 2002 |
| Grant date | Apr 4, 2006 |
| Priority date | — |
| Expiry date | Dec 10, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V3/083
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A subsurface imaging cable includes a plurality of sensor modules, wherein the plurality of the sensor modules are flexible and each of the plurality of the sensor modules is spaced apart on the subsurface imaging cable at a selected distance; and a flexible medium connecting the plurality of the sensor modules, wherein the subsurface imaging cable is flexible and adapted to be wound on a reel. A method for subsurface images includes acquiring direct-current measurements at a plurality of sites in a survey area; acquiring a first set of electric and magnetic measurements from natural electromagnetic fields at the plurality of sites; acquiring a second set of electric and magnetic measurements using controlled electric and magnetic sources at the plurality of sites; and determining a subsurface conductivity distribution from the direct-current measurements and the first set and the second set of electric and magnetic measurements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.