Nuclear well logging with neutron source and separate spaced radiation detectors to determine silicon/oxygen ratio
US4380701A · kind A · utility
7Cited by
6References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 2, 1980 |
| Grant date | Apr 19, 1983 |
| Priority date | — |
| Expiry date | Oct 2, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V5/101
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Earth formations surrounding a well borehole are bombarded with high energy neutrons which react with chemical elements in the formation components, giving rise to gamma radiation. The gamma radiation is detected by two separate, spaced detectors from which well logs are obtained indicating a ratio of the relative presence of silicon to oxygen in the formations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.