SYSTEM AND METHOD FOR EVALUATING CONTAMINATION OF FORMATION FLUID SAMPLES WITH FILTRATE USING REFRACTION INDEX Russian patent published in 2012 - IPC G01N33/26 

Abstract RU 2454662 C2

FIELD: chemistry.

SUBSTANCE: described are versions of a method and apparatus for conducting such evaluation when determining the final degree of purity or final degree of contamination of fluid during sampling thereof. The described apparatus and method involve measuring the refraction index of the fluid over a certain period of time, curve fitting using refraction index measurement results or data values derived therefrom and calculating the final refraction index or final data value based on the fitted curve in order to calculate the final degree of contamination or purity of the fluid.

EFFECT: high information content and reliability of evaluation.

25 cl, 6 dwg

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RU 2 454 662 C2

Authors

Difodzhio Rokko

Simpson Angus

Dates

2012-06-27Published

2007-04-05Filed