Apparatus and method for downhole resistivity measurements
US9575201B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 11, 2014 |
| Grant date | Feb 21, 2017 |
| Priority date | — |
| Expiry date | Oct 3, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V3/28
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A downhole tool includes a body having a longitudinal axis and bore therethrough, an array of longitudinal electrode segments separated by electrical insulators, wherein substantially an entire cross section of said body comprises at least one electrode segment, at least one longitudinal electrode configured to emit a first electrical current into said formation and measure said first emitted current, at least one longitudinal electrode segment configured to emit a second electrical current for directing said first emitted current into said formation, and at least one longitudinal electrode segment configured to receive said first emitted current returning from said formation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.