Compressor assembly including separator and ejector pump

A fluid processing device for processing a multiphase fluid stream having a mixture of at least a gas and a liquid, the fluid processing device comprising:

• a separator fluidly coupled to a multiphase fluid source and configured to separate the multiphase fluid stream into a substantially liquid component and a substantially gaseous component;
• a liquid reservoir having an inlet and an outlet, wherein the inlet is fluidly coupled to the first separator such that the substantially liquid component flows into the liquid reservoir;
• a compressor having an inlet and an outlet, wherein the inlet of the compressor is fluidly coupled to the first separator to receive the substantially gaseous component, the compressor being configured to pressurize the substantially gaseous component and discharge pressurized gas through the outlet of the compressor;
• a first ejector pump fluidly coupled to both the compressor and the liquid reservoir, wherein the first ejector pump is configured to receive pressurized gas from the compressor to draw in a flow of the substantially liquid component from the liquid reservoir and to discharge a first pressurized liquid;
• a second ejector pump fluidly coupled to both the compressor and the first ejector pump, wherein the second ejector pump is configured to receive pressurized gas from the compressor to draw in the first pressurized liquid from the first ejector pump and to discharge a second pressurized liquid;
• and
• a fluid discharge line fluidly coupled to the outlet of the compressor and configured to receive pressurized gas from the compressor and to receive the second pressurized liquid from the second ejector pump to provide a pressurized multiphase fluid stream results.

A method of processing a multiphase fluid stream including a mixture of a gas and a liquid, comprising:

• separating the multiphase fluid stream into a substantially liquid component and a substantially gaseous component using a first separator;
• directing the substantially liquid component to a liquid reservoir fluidly coupled to the first separator;
• pressurizing the substantially gaseous component in a compressor having an inlet and an outlet, wherein the inlet of the compressor is fluidly coupled to the first separator;
• discharging a pressurized gas through the outlet of the compressor;
• directing at least some of the pressurized gas from the compressor to an ejector pump fluidly coupled to both the compressor and the liquid reservoir;
• drawing in a flow of the substantially liquid component from the liquid reservoir into the ejector pump;
• discharging a pressurized liquid from the ejector pump;
• and
• receiving into a fluid discharge line both the pressurized gas from the compressor and the pressurized liquid from the ejector pump, wherein the fluid discharge line is fluidly coupled to both the compressor outlet and the ejector pump, to form a pressurized multiphase fluid stream.