Method for subsurface electromagnetic surveying using two or more simultaneously actuated electromagnetic sources
US8063642B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 11, 2008 |
| Grant date | Nov 22, 2011 |
| Priority date | — |
| Expiry date | Aug 22, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V3/083
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for electromagnetic exploration includes imparting a first electromagnetic signal into subsurface formations from a first location and imparting a second electromagnetic signal into the formations from a second location substantially contemporaneously with imparting the first electromagnetic signal. The first and second electromagnetic signals are substantially uncorrelated with each other. A combined electromagnetic response of the formations to the first and second imparted electromagnetic signals is detected at a third location. A response of the formations to each of the first and the second imparted signals is determined from the detected response.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.