APPARATUS AND METHOD FOR DETERMINING FRACTIONS OF PHASES OF FLUID MEDIUM USING X-RAY BEAMS, OPTIMISED FOR WET GAS

摘要

FIELD: physics.SUBSTANCE: apparatus for determining the fractional amount of each phase of a multiphase fluid medium includes an X-ray generator and a sample chamber configured to hold a sample of the fluid medium for analysis. The chamber is placed on the path of the output of radiation from the generator. A filter is placed on the radiation path between the output of the generator and the input of the sample chamber. A first radiation detector is placed on the radiation path from the sample chamber after passage of the radiation through the sample chamber. The thickness and material of the filter is selected to optimise resolution of radiation detected by the first detector based on variations in volume fractions of oil and water in the sample of the fluid medium when the gas fraction therein is about 90-100%.EFFECT: high accuracy under conditions which include high fractional volume of gas in the analysed fluid medium.13 cl, 6 dwg