Borehole compensation method and apparatus using variations in relative borehole components
US4691102A · kind A · utility
9Cited by
5References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 17, 1985 |
| Grant date | Sep 1, 1987 |
| Priority date | — |
| Expiry date | Jun 17, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V5/125
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Compensation of photoelectric absorption measurements for borehole effects during nuclear logging of downhole earth formations is accomplished by detecting low energy gamma radiations entering two detectors in the logging tool along paths having substantially constant formation components but varying borehole components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.