Method and apparatus for composition analysis in a logging environment
US7279678B2 · kind B2 · utility
12Cited by
20References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 15, 2005 |
| Grant date | Oct 9, 2007 |
| Priority date | — |
| Expiry date | Dec 2, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/3577
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Methods and apparatus for analyzing a hydrocarbon mixture are disclosed, comprising at least one light-emitting diode (LED) and at least one photodetector positioned to detect energy transmitted by the LED through a sample of the hydrocarbon mixture. In at least one embodiment an optical filter is coupled to the output of the LED to mitigate the adverse effects of the LED's sensitivity to temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.