A microfluidic oscillating tube densitometer for downhole...

G - Physics – 01 – V

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Details

G01V 11/00 (2006.01) E21B 47/00 (2006.01) E21B 49/08 (2006.01) G01V 1/40 (2006.01) G01V 3/18 (2006.01)

Patent

CA 2753389

Devices, methods and systems for determining one or more properties of at least one fluid sample. A tube configured to receive the at least one fluid sample wherein the tube is placed in a pressure housing. Further, an excitation source configured to generate vibration of the tube whereby a circulation of an electrical current along a portion of the tube is subjected to at least one magnetic field produced by at least one magnet. Further still, at least one vibration sensor that converts vibrations of the tube into a measurement signal. Finally, a processor that receives the measurement signal determines a resonant frequency from the measurement signal using a frequency measuring device to determine a property of the one or more properties of the at least one sample fluid.

L'invention concerne des dispositifs, des procédés et des systèmes pour déterminer une ou plusieurs propriétés d'un ou de plusieurs échantillons de fluide. Le système comporte un tube conçu pour recevoir le ou les échantillons de fluide, le tube étant placé dans un carter sous pression ; une source d'excitation capable de faire vibrer le tube, moyennant quoi un courant électrique en circulation le long d'une partie du tube est soumis à au moins un champ magnétique produit par au moins un aimant ; au moins un capteur de vibrations qui convertit les vibrations du tube en signal de mesure ; et un processeur qui reçoit le signal de mesure et détermine une fréquence de résonance à partir du signal de mesure au moyen d'un dispositif de mesure de fréquence pour déterminer une ou plusieurs propriétés du ou des échantillons de fluide.

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