Downhole tool for determining formation properties
US9316764B2 · kind B2 · utility
0Cited by
7References
11Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 27, 2009 |
| Grant date | Apr 19, 2016 |
| Priority date | — |
| Expiry date | Sep 22, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V5/104
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A downhole tool and method for determining properties of a formation. The method comprising irradiating the formation with a nuclear source; performing both a resistivity and a sigma measurement at each of different radial depths into the formation with a plurality of detectors; and inputting the measurements into a predetermined model for determining the properties of the formation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.