Patent ID: 11377947

Abstract:
A method of preventing over-pressurization of a downstream piping network, using a safety VFD, includes continuously receiving, from sensors attached to an ESP, values representing input/output operating parameters of the ESP. The ESP is disposed in a wellbore and fluidically coupled to a piping network disposed at a surface of the wellbore. The method also includes comparing one or more values to operating parameter thresholds determined based on at least one of 1) expected ESP parameters during a blocked outlet condition of the piping network or 2) an association of the operating parameter threshold with a fluidic pressure of the piping network that has a potential of reaching an MAOP of the piping network. The method also includes determining that values meet the threshold and changing an input parameter of the ESP to change a fluidic output of the ESP to prevent the over pressurization of the downstream piping network.