Real-time control of drilling fluid properties using predictive models

A method for controlling drilling fluid properties, in some embodiments, comprises determining a predictive model for a fluid circulation system that routes drilling fluid downhole to a drill bit to remove debris from said drill bit; determining a cost function associated with the fluid circulation...

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Bibliographische Detailangaben
Hauptverfasser: Fanping Bu, Zhijie Sun, Jason Daniel Dykstra, Yuzhen Xue
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A method for controlling drilling fluid properties, in some embodiments, comprises determining a predictive model for a fluid circulation system that routes drilling fluid downhole to a drill bit to remove debris from said drill bit; determining a cost function associated with the fluid circulation system; using the predictive model and the cost function to determine a set of input values for the predictive model; operating a controlled device according to at least some of the set of input values, said controlled device changes properties of the drilling fluid in the fluid circulation system; and obtaining measurements of the properties.