Demulsifier control algorithm for dual frequency desalting electrostatic coalescers

A computer system, comprising:

• a computer memory;
• and
• a hardware processor interoperably coupled with the computer memory and configured to perform operations comprising:
• monitoring, at a gas oil separation plant (GOSP) facility that includes a high-pressure production trap (HPPT) apparatus and a dual frequency desalting (DFD) device, a plurality of parameters, wherein the plurality of parameters include one or more current measurements from the DFD device, as well as gas temperature and demulsifier concentration from the HPPT apparatus;
• based on the one or more current measurements, determining a rate of change of the one or more current measurements from the DFD device;
• and
• in response to the rate of change as well as the gas temperature and the demulsifier concentration, adjusting a demulsifier dosage being injected into the HPPT apparatus.

A non-transitory, computer-readable medium storing one or more instructions executable by a computer system to perform operations comprising:

• monitoring, at a gas oil separation plant (GOSP) facility that includes a high-pressure production trap (HPPT) apparatus and a dual frequency desalting (DFD) device, a plurality of parameters, wherein the plurality of parameters include one or more current measurements from the DFD device, as well as gas temperature and demulsifier concentration from the HPPT apparatus;
• based on the one or more current measurements, determining a rate of change of the one or more current measurements from the DFD device;
• and
• in response to the rate of change as well as the gas temperature and the demulsifier concentration, adjusting a demulsifier dosage being injected into the HPPT apparatus.