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EP0473500A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Measurement of the components distribution of a mixture by ultrasounds

Assignee: IFP Energies nouvelles
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Filing: 1991-08-22
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Granted: —
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Expires: 2011-08-22
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Abstract

Abstract Translated from French L'invention concerne un procédé et un dispositif de mesure de la répartition des concentrations de constituants d'un milieu en centrifugation contenant au moins un fluide. Selon le procédé, on émet pendant la centrifugation un signal mécanique, de préférence une onde acoustique, à partir d'au moins un point d'émission [19-22] au contact ou au voisinage immédiat du milieu [16]. On reçoit le signal transmis par au moins un point de réception [20-22] au contact ou au voisinage immédiat du milieu. On mesure pour chaque couple de point d'émission et de réception au moins une caractéristique de propagation du signal entre le point d'émission et de réception du signal et on détermine par des moyens de traitement appropriés la répartition des concentrations des constituants présents dans le milieu. Une application proposée est le calcul des courbes de pression capillaire et de perméabilités relatives de fluides dans un milieu poreux, en vue notamment d'améliorer l'exploitation des gisements pétroliers. The invention relates to a method and a device for measuring the distribution of the concentrations of constituents of a medium in centrifugation containing at least one fluid. According to the method, a mechanical signal, preferably an acoustic wave, is emitted during centrifugation from at least one emission point [19-22] in contact with or in the immediate vicinity of the medium [16]. The signal transmitted by at least one reception point [20-22] is received in contact with or in the immediate vicinity of the medium. At least one characteristic of signal propagation between the point of emission and reception of the signal is measured for each pair of emission and reception point and the distribution of the concentrations of the constituents present in the signal is determined by appropriate processing means. middle. A proposed application is the calculation of capillary pressure and relative permeability curves of fluids in a porous medium, with a view in particular to improving the exploitation of petroleum deposits.

Inventors

  • 👤 Roland Lenormand
  • 👤 Pierre Forbes
  • 👤 Moricio Hoyos
  • 👤 Françoise Deflandre

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-08 21:19
CPC Classifications
G; G01; G01N; G01N29/00; G01N29/02; G01N29/024; G01N29/34; G01N29/341; G01N29/343; G01N2291/00; G01N2291/02; G01N2291/028; G01N2291/02809; Y; Y10; Y10T; Y10T436/00; Y10T436/11; Y10T436/111666

Claims Analysis

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References Cited (Backward Citations)

FR2556836A1 Cited

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