Well logging apparatus and method using transverse magnetic mode
US4553097A · kind A · utility
60Cited by
16References
54Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 30, 1982 |
| Grant date | Nov 12, 1985 |
| Priority date | — |
| Expiry date | Sep 30, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V3/30
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A well logging apparatus and method is disclosed which can be used as a wireline logging device or technique, and is also suitable for being employed in a logging-while-drilling device. Electromagnetic energy having primarily a transverse magnetic mode component is guided along a tubular conductor in a borehole, and measurements of the transverse magnetic mode component can be used to obtain the conductivity and/or dielectric constant of formations surrounding the borehole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.