Method and apparatus for surveying and monitoring a reservoir penetrated by a well including fixing electrodes hydraulically isolated within a well
US5642051A · kind A · utility
61Cited by
15References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 17, 1994 |
| Grant date | Jun 24, 1997 |
| Priority date | — |
| Expiry date | Nov 17, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V3/20
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Apparatus and method for monitoring a fluid reservoir traversed by at least one well comprising the placing of at least one electrode communicating to the surface and fixed in permanent manner in the well. Hydraulically isolating the section of the well in which it is located from the rest of the well and providing electrical coupling between the electrode and the reservoir. Subsequently, a current is passed through the reservoir; and an electrical parameter is measured, whereby a characteristic representative of the reservoir can be deduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.