Method and device for characterizing oil borehole effluents
US6389908B1 · kind B1 · utility
60Cited by
4References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 14, 1998 |
| Grant date | May 21, 2002 |
| Priority date | — |
| Expiry date | May 14, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N23/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to a method of characterizing an oil borehole effluent, formed by a multiphase fluid mixture typically containing water, oil, and gas. According to the invention, a gadolinium 153 source is used to emit gamma rays at a first energy level of about 100 keV and at a second energy level of about 40 keV, and the attenuation of the gamma rays at these two energy levels is measured after the rays have passed through the effluent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.