FIELD: oil and gas industry, examination of injection wells equipped with lubricator. SUBSTANCE: heater has heating source, liquid-filled chamber of heating source connected to chamber of lubricator overhead and underneath by open conduits. Heating source contacts lubricator through chamber of heating source. Chamber of lubricator is filled with liquid and is placed in heating system of chamber of heating source. EFFECT: increased efficiency of lubricator heating. 1 dwg
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