ELECTRIC HATER FOR REMOVAL OF HYDRATE-PARAFFIN ACCUMULATIONS Russian patent published in 2002 - IPC

FIELD: oil- and gas-producing industry, particularly, equipment for removal of hydrate-paraffin accumulations from oil and gas wells. SUBSTANCE: electric heater has a body filled with heat-conducting material in liquid phase during operation, and electric heater proper. Heat-conducting material is selected with melting temperature not exceeding the working temperature of electric heater. Weight of heat-conducting material is calculated on condition of its melting with electric heater and conversion into liquid state to ensure convection motion along electric heater upward, and along body internal surface downward. Heat conducting material is used in the form of soft low-melting metal. EFFECT: higher heat transmission rate and increased heater operation productivity. 2 cl, 1 dwg