Earth formation salinity by comparison of inelastic and capture gamma ray spectra
US4020342A · kind A · utility
21Cited by
2References
10Claims
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Key dates
| Filing date | Dec 22, 1975 |
| Grant date | Apr 26, 1977 |
| Priority date | — |
| Expiry date | Dec 22, 1995 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V5/102
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Background corrected inelastic neutron scattering gamma ray counts for selected energy regions of the gamma ray spectrum corresponding to calcium and silicon are compared with thermal neutron capture gamma ray counts for selected energy regions of the gamma ray spectrum. These data are functionally related to chlorine presence and are used to derive an estimate of the salinity of earth formations. The inelastic scattering and thermal neutron capture gamma ray data are separated from each other by the use of a pulse neutron source and time gating techniques.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.