Electromagnetic logging apparatus with button antennas for measuring the dielectric constant of formation surrounding a borehole
US4652829A · kind A · utility
43Cited by
11References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 28, 1984 |
| Grant date | Mar 24, 1987 |
| Priority date | — |
| Expiry date | Dec 28, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V3/30
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An electromagnetic logging apparatus is disclosed which employs dielectric-filled button antennas, in conjunction with tuning elements, to obtain improved operation. The apparatus can be used to measure the dielectric constant of formations surrounding a borehole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.