Determining fluid properties from fluid analyzer
US6956204B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2003 |
| Grant date | Oct 18, 2005 |
| Priority date | — |
| Expiry date | Jun 29, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/2823
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for determining properties of a formation fluid including obtaining data related to an optical density at a methane peak and an optical density at an oil peak for a fluid sample at a plurality of times, calculating an apparent gas-oil-ratio of the sample fluid from the optical density of the fluid sample at the methane peak to the optical density of the fluid sample at the oil peak at each of the plurality of times based on the data, selecting a power function of a sampling parameter for a buildup of the apparent gas-oil-ratio, calculating an exponential constant of the power function based on the data, and determining at least one selected from the group consisting of a contamination free gas-oil-ratio and a percent contamination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.