FIELD: oil and gas industry.
SUBSTANCE: lubricator includes a connection flange, a preventer, a sectional chamber and a sealing device. The sealing device consists of a sealed housing and sealing elements installed in the housing. An explosion-proof heating element of direct heating, which is insulated from the environment with a heat-insulating gasket and a protective casing, is fixed on the outer surface of the sealing device housing. The heating element is connected to an electric network of industrial frequency.
EFFECT: creation of a simple, reliable and cheap device; improvement of operating efficiency of a lubricator under conditions of possible formation in its sealing device of ice hydrate plugs.
1 cl, 1 dwg
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