Apparatus and method for measuring electrical properties of an underground formation
US9400339B2 · kind B2 · utility
6Cited by
20References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2011 |
| Grant date | Jul 26, 2016 |
| Priority date | — |
| Expiry date | Jun 14, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V3/265
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present disclosure provides an apparatus and method for measuring electrical properties of an underground formation surrounding a borehole. The apparatus preferably comprises a downhole tool positionable in the borehole, a sensor pad positionable on the downhole tool, and a plurality of electrodes mounted on the sensor pad and configured to face a wall of the borehole. The apparatus further comprises an insulating layer extending over at least a portion of the plurality of electrodes facing the wall of the borehole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.