Tool for imaging a downhole environment
US8994377B2 · kind B2 · utility
3Cited by
19References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 22, 2009 |
| Grant date | Mar 31, 2015 |
| Priority date | — |
| Expiry date | Oct 15, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V3/24
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention is concerned with a tool and method for determining standoff from a formation though mud. The tool comprising a first electrode located at a distance from the formation for measuring a first impedance. A second electrode is located at a second distance from the formation for measuring a second impedance. A processing unit measures a difference between the first impedance and the second impedance, uses the difference to determine a conductivity of the mud and based thereon, determines the standoff of at least one of the first and the second electrode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.