Abstract: The present disclosure relates to a method for predicting the pressurization rate of an oil tank. An embodiment of a method includes obtaining plant information data, classifying an operating period, selecting a modeling data range; determining total gas volume in the tank through data from an oil tank liquid level sensor, determining an average pressure of the gas phase in the tank through the data from the oil tank top pressure sensor, determining an average temperature of the gas phase in the tank through data from an oil tank top temperature sensor, setting the desired oil flow rate, predicting the future pressure in relation to the desired oil flow rate, predicting violation of the critical pressure, determining a period of time of weather calm, and setting a new oil production setpoint.

Abstract: Methods and apparatus are provided for process monitoring based on large-scale combinations of time series data. An exemplary method comprises generating a model from time series data for a given target time series; determining whether a first difference between measured values and predicted values based on the model exceeds a predefined threshold indicating a target prediction error; in response to a detected target prediction error, performing evaluations of (i) a neighborhood coherence comprising an average of variables of the model weighted by corresponding coefficients on a predefined neighborhood time window, and/or (ii) a second difference between a given value of at least one variable in the model and an average value of the at least one variable based on a training dataset; providing notifications when first predefined criteria based on the evaluations are satisfied; and updating the model when second predefined criteria based on the evaluations are satisfied.

Abstract: The present invention describes a process for the synthesis of spherical particles of polyvinyl alcohol—PVA and/or polyvinyl acetate—PVAc with shell nucleus structure from total or partial hydrolysis in a caustic aqueous medium with obtaining particulates of PVA/PVAc with controlled spherical morphology, to be used in vascular embolization.