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Method and system intended for real-time estimation of the flow mode of a multiphase fluid stream at all points of a pipe

  • US 20020016701A1
  • Filed: 07/06/2001
  • Published: 02/07/2002
  • Est. Priority Date: 07/27/2000
  • Status: Active Grant
First Claim
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1. ) A method intended for real-time estimation of the flow mode, at all points of a pipe whose structure can be defined by a certain number of structure parameters, of a multiphase fluid stream defined by several physical quantities and comprising at least a liquid phase and at least a gas phase, characterized in that it comprises:

  • forming a non-linear neural network with an input layer having as many inputs as there are structure parameters and physical quantities, an output layer with as many outputs as there are quantities necessary for estimation of the flow mode and at least one intermediate layer, creating a learning base with predetermined tables connecting various values obtained for the output data to the corresponding values of the input data, and determining by iterations weighting factors of the activation function allowing to properly connect the values in the input and output data tables.

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