FIELD: mining.
SUBSTANCE: device for heat treatment of bottomhole zone includes electric steam generator being zero electrode, which is filled with water, isolated central current lead placed inside the housing and connected to phase electrodes installed on it one above the other. At that, each phase electrode is made in the form of multiple-thread screw with blade attack angle of 20°-40°. At that, condensate collectors in the form of steel rings are located on inner surface of the housing.
EFFECT: improvement of well heat treatment efficiency.
4 dwg
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