Evaluation of formation composition using neutron induced gamma spectroscopy tools
US11079513B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 8, 2017 |
| Grant date | Aug 3, 2021 |
| Priority date | — |
| Expiry date | Nov 8, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V5/102
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Systems and methods for measuring formation properties in downhole operations are provided. The systems and methods include generating, at a neutron source, neutrons that are emitted into a downhole formation (302), registering, at a detector, photons generated by chemical constituents of the downhole formation (304), measuring a response of the photons registered at the detector (306), transforming, with a computing system, the measured responses of the photons registered at the detector into thermal neutron capture probabilities (308), and transforming the thermal neutron capture probabilities into weight concentrations of the chemical constituents of the downhole formation (312).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.