ELECTRODE HEATING SCRAPER FOR WELL Russian patent published in 2024 - IPC E21B36/04 E21B37/02 B08B9/43 

FIELD: oil industry.

SUBSTANCE: invention relates to the oil industry, specifically to the operation of oil and gas wells, and can be used to remove deposits of asphalt-resin-paraffin deposits (ARPD), hydrates, calcium salts, etc. from inner surface of tubing, including fiberglass. Electrode heating scraper for well contains housing with electrode electric heating element and cutters. Housing is made with possibility of connection with electric armoured cable and power supply source of ground lifting logging station. Armoured single-core load-carrying geophysical cable is used as the electric armoured cable. Electric power supply is represented by a power supply of up to 10,000 W, which provides control and regulation of heating of the electric heating element. Power supply is connected in series to the device for controlling the output electric power supplied through the armoured single-core load-carrying geophysical cable to the electric heating element. Upper part of housing of electric heating element is equipped with docking unit, providing connection with armoured single-core load-carrying geophysical cable of mobile hoist with winch, and its lower part is connected to cutters by detachable connection.

EFFECT: higher efficiency of cleaning of tubing from ARPD.

1 cl, 3 dwg