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METHOD AND APPARATUS FOR MONITORING THE FLOW OF MIXTURES OF FLUIDS IN A PIPE

  • US 20190310120A1
  • Filed: 06/24/2019
  • Published: 10/10/2019
  • Est. Priority Date: 04/30/2013
  • Status: Active Grant
First Claim
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1. An oil well system including a plurality of oil wells, a plurality of collection pipelines, and a manifold, each oil well having a respective collection pipeline connected to the manifold, a common output pipeline extending from the manifold to an oil collection assembly, and monitoring apparatus coupled to a pipe for monitoring a multiphase flow in the pipe, wherein the pipe comprises one of the collection pipelines or the common output pipeline, and the monitoring apparatus is adapted to provide output data representing (a) a respective concentration of one phase of a plurality of phases, or a mixture of at least two of the phases, in the multiphase flow, (b) a respective concentration of one phase or a mixture of at least two of the phases of the multiphase flow;

  • and (c) a respective velocity of at least one phase of the plurality of phases in the multiphase flow, the monitoring apparatus comprising;

    a) a first monitoring module coupled to the pipe and adapted to transmit a varying electrical field into the multiphase flow and to receive a resultant first varying electrical field from the multiphase flow to provide first output data representing a respective concentration of one phase of a plurality of phases, or a mixture of at least two of the phases, in the multiphase flow by processing at least one first variable representing electrical permittivity of one phase or a mixture of at least two of the phases of the multiphase flow;

    b) a second monitoring module coupled to the pipe and adapted to transmit a varying magnetic field into the multiphase flow and to receive a resultant secondary varying magnetic field from the multiphase flow to provide second output data representing a respective concentration of one phase, or a mixture of at least two of the phases, of the plurality of phases in the multiphase flow by processing at least one second variable representing electrical conductivity of one phase or a mixture of at least two of the phases of the multiphase flow; and

    c) a third monitoring module coupled to the pipe and adapted to transmit a further varying magnetic field into the multiphase flow and to receive a resultant further varying electrical field from the multiphase flow to provide third output data representing a respective velocity of at least one phase of the plurality of phases in the multiphase flow by processing at least one third variable representing velocity of at least one of the phases,wherein the first monitoring module is adapted to provide the first output data in a form representing the concentration of at least one or each of the phases, the second monitoring module is adapted to provide the second output data in a form representing the concentration of at least one or each of the phases and the third monitoring module is adapted to provide the third output data in a form representing the velocity of at least an aqueous phase or each of the phases, to provide the first, second and third output data in a form representing the concentration, density and velocity of each of the phases,wherein each of the first, second and third monitoring modules is adapted respectively to provide the first, second or third output data in a form representing the respective first, second or third variable across plural cells of a cellular grid extending across at least a portion of a cross-sectional area of the interior of the pipe,a control system including a multiphase fluid flow model, anda data connection between the or each monitoring apparatus and the control system to enable the output data to be input to the multiphase fluid flow model.

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