Immersed plate heater separation system

Abstract

A separation system for separating a multiphase fluid into an oil fraction and at least one of a water fraction and a gas fraction includes an elongated separator vessel which includes a multiphase fluid inlet and an oil outlet located downstream of the multiphase fluid inlet, a first immersed plate heater which is positioned in the separator vessel between the multiphase fluid inlet and the oil outlet, a heating medium heater which is located externally of the separator vessel and is fluidly connected to the first immersed plate heater, a second immersed plate heater which is positioned in the separator vessel between the multiphase fluid inlet and the oil outlet and which includes an inlet and an outlet, and an oil discharge line which is connected between the oil outlet and the inlet of the second immersed plate heater. In operation, a heating fluid which is heated in the heating medium heater is circulated through the first immersed plate heater to heat the multiphase fluid, and the oil fraction discharged from the oil outlet is circulated through the second immersed plate heater to heat the multiphase fluid.

Dependencies are inferred from the claim text.