Method and apparatus for geophysical prospecting by radioactive diagraphy
US4103158A · kind A · utility
0Cited by
2References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 15, 1976 |
| Grant date | Jul 25, 1978 |
| Priority date | — |
| Expiry date | Oct 15, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V5/08
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to method and apparatus for geophysical prospecting by radioactive diagraphy of a drillhole, using a probe containing a radioactive source and one or two detectors of delayed particles emitted by the terrain bombarded by the said source. The source is moved periodically, within the probe, vertically away from the detector, and the detector is moved, in synchronism with the said source, in order to locate it opposite the zone which has just been bombarded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.