Determining fluid properties from fluid analyzer
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United States of America Patent
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Oct 18, 2005
Grant Date -
Sep 30, 2004
app pub date -
Mar 27, 2003
filing date -
Mar 27, 2003
priority date (Note) -
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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.
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