Short-offset transient electromagnetic geophysical surveying
US8143897B2 · kind B2 · utility
3Cited by
7References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 11, 2009 |
| Grant date | Mar 27, 2012 |
| Priority date | — |
| Expiry date | Jan 21, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V3/083
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for electromagnetic surveying subsurface formations includes inducing an electromagnetic field in the subsurface formations by passing electric current through a transmitter. Response of the subsurface formations to the induced electromagnetic field is detected at a first plurality of spaced apart positions disposed longitudinally within a bipole length of the transmitter. A direct induction response is removed from the detected response.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.