Well logging apparatus and method for measuring formation properties
US7148471B2 · kind B2 · utility
21Cited by
17References
53Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 18, 2001 |
| Grant date | Dec 12, 2006 |
| Priority date | — |
| Expiry date | Jul 1, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V5/104
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A logging tool includes an elongated body housing a neutron source and at least one neutron detector positioned along one side of the neutron source. Some embodiments of the logging tool include at least one gamma ray detector longitudinally separated from and to one end of the neutron source, and may be used to make simultaneous gamma ray and neutron logging measurements. In some embodiments, the logging tool also includes a (n, 2n)-neutron shield positioned to one end of the neutron detector, longitudinally between the neutron detector and the neutron source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.