Protection system for subsea seawater injection pumps

A pump system, comprising:

• a pump positioned in a pump chamber for pumping seawater at a chosen rate into a discharge pipe;
• an electric motor comprising insulated windings driving the pump, the electric motor positioned in a motor chamber;
• a pressurized fluid provided to the motor chamber and the pressurized fluid disposed inside of the electric motor, wherein the pressurized fluid is water based and acceptable to a seawater environment;
• a seal separating the motor chamber and the pump chamber, wherein the seal allows a leakage of the pressurized fluid between the motor chamber and the pump chamber;
• and
• a discharge branch line coupled to the discharge pipe and positioned downstream from the pump, the discharge branch line having an outlet to the seawater environment, whereby the pressurized fluid leakage can be circulated to the seawater environment.