Device for electrode-type electrical logging tools and tool incorporating said device
US4286217A · kind A · utility
37Cited by
12References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 1, 1979 |
| Grant date | Aug 25, 1981 |
| Priority date | — |
| Expiry date | Feb 1, 1999 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/017
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A logging tool in accordance with the invention comprises a unitized electrode assembly adapted to be removably mounted on a central mandrel. The unitized electrode assembly comprises a metallic tube that is encased within an electrically-insulating sheath. An insulating sleeve surrounding the sheath carries various electrodes that are separated from each other by insulating spacers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.