Measurement of formation porosity using a single gamma ray detector
US8847170B2 · kind B2 · utility
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Key dates
| Filing date | Jun 19, 2012 |
| Grant date | Sep 30, 2014 |
| Priority date | — |
| Expiry date | Sep 8, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V5/125
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A pulsed neutron source is used in a porosity logging tool with a single gamma ray detector coated with a neutron absorbing material. By using a ratio of the spectral peak associated with hydrogen to a spectral peak associated with the neutron absorbing material, the formation porosity is estimated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.