Patent ID: 8425667

Claim:
A subsea system, comprising: a multiphase pump, configured to transfer a multiphase fluid; and a multiphase separator, configured to separate the multiphase fluid into solid, liquid, and gaseous phases, comprising: a multiphase fluid inlet coupled to a shell, wherein the multiphase fluid inlet is configured to receive the multiphase fluid from the multiphase pump; a solid-liquid separation device disposed in the shell, wherein the solid-liquid separation device is configured to facilitate separation of the solid phase and the liquid phase from the multiphase fluid; a gas-liquid separation device disposed in the shell, wherein the gas-liquid separation device is configured to facilitate separation of the gaseous phase and the liquid phase from the multiphase fluid; a liquid reservoir disposed in the shell, wherein the liquid reservoir is configured to hold a volume of the liquid phase to be used as a lubricant for the multiphase pump; and a liquid outlet coupled to the shell, wherein the liquid outlet is configured to transfer the liquid phase from the liquid reservoir to the multiphase pump.