Method and apparatus for transmitting information relating to the operation of a downhole electrical device
US5521592A · kind A · utility
71Cited by
9References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 20, 1994 |
| Grant date | May 28, 1996 |
| Priority date | — |
| Expiry date | Jul 20, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2203/5495
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for transmitting information relating to the operation of an electrical device disposed in a borehole, in which information picked up by at least one downhole sensor is conveyed to surface reception means via the wire connection connecting said device to electrical power supply means on the surface, the invention being characterized in that said wire connection is inductively coupled firstly with said sensor and secondly with said reception means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.