Cathodic protection system and method for oil and gas heater treater vessel

A cathodic protection system for a heater treater vessel, the cathodic protection system comprising:

• the heater treater vessel, wherein the heater treater vessel includes a housing, a heating element, and an anode port, wherein the vessel is configured to be supplied with crude oil emulsions for treatment by the vessel, wherein the treatment comprises applying heat from the heating element causing separation of the emulsion into oil, gas, and water phases, such that electrical current is generated within the water phase of the vessel, and
• a consumable assembly removably coupled to the anode port,
• wherein the consumable assembly includes an anode assembly and an anode receiver assembly, wherein the anode assembly includes a metal rod and an anode comprised of a weaker metal than the metal rod, wherein the anode is in contact with the metal rod,
• wherein the anode receiver assembly includes a receiver portion and a ground member, wherein the receiver portion is electrically connected to the ground member, wherein the metal rod of the anode assembly is received in and electrically connected to the receiver portion, wherein the ground member is electrically connected to the housing to provide an electrical grounding point, wherein the metal rod and the anode are submerged within the water phase of the vessel to provide cathodic protection to the interior of the housing by completing an electrical circuit within the water phase of the vessel.