METHOD FOR MONITORING CONDITION OF ENGINEERING NETWORKS AND CALIBRATING CHANNELS FOR MEASURING PARAMETERS OF FLOWS Russian patent published in 2006 - IPC E21B47/10 

FIELD: automated control over technological processes in oil extractive and other industrial branches, having branched engineering networks for collecting, transporting and distributing material and energetic flows.

SUBSTANCE: method includes measuring loss of flows in engineering system, including elementary and aggregated technological nodes, controlling balance of flows in all elementary nodes of engineering network, selecting standard measuring channels, generating calibration functions for other measuring channels and computing calibration coefficient values for them. Additionally, condition of flows balance is monitored in all aggregated nodes as well as manner of alteration of share ratios of losses of incoming and outgoing flows in nodes. On basis of results of control of balance condition in elementary and aggregated nodes and manner of alteration of share ratios of losses of incoming and outgoing flows in nodes, coefficients of trust degree to measurements of each flow in engineering system and trust degree to structure of balance model of each elementary node are calculated. As standard measuring channels, all measuring channels of engineering systems are taken, values of trust degree coefficients to measurements in which are above a given value. Calibration functions are generated using balance models of only those elementary nodes, trust degree coefficients to structure of model of which are above given value, and those aggregated nodes, which envelop only those elementary nodes, for which coefficients of trust degree to model structure are above given value. Reasons of balance disruption are determined more precisely for nodes with low, compared to given, value of coefficient of trust degree to structure of model, on basis of analysis of characteristic of alteration of share ratios of incoming and outgoing flows in nodes in comparison to standard ratio.

EFFECT: increased precision of control over condition of engineering network and also of calibration of channels for measuring flow parameters.

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