FIELD: oil and gas industry.
SUBSTANCE: device includes hold-down unit having inlet fluid medium opening, which is connected in detachable manner to outlet fluid medium opening of well tubular element, outlet fluid medium opening, which is connected in detachable manner to inlet fluid medium opening of well tubular element, and channel passing between inlet fluid medium opening of hold-down unit and outlet fluid medium opening of hold-down unit and including the inward passing projection intended for heat transfer from the heat-generating element to fluid medium flowing through the channel.
EFFECT: increasing heat dissipation efficiency in well tool.
13 cl, 10 dwg
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