A heating cable for an extraction pipe of viscous hydrocarbon or paraffinic in a well, the heating cable including a sleeve made of a flexible material, the sleeve has a perimeter, an internal cavity, and a continuous homogeneous length, the sleeve is free of perforations; electrically conductive conductors placed inside the sleeve, the electrically conductive conductors are parallel to each other and separate from each other by a space; a primary insulation layer independently wrapping each one of the electrically conductive conductors; a layer including of a single fluoropolymer material completely filling up the entire cavity of the sleeve and forming a solid structure that encases the electrically conductive conductors, the primary insulation layer, the entire space between the electrically conductive conductors, and the entire perimeter of the sleeve; a metallic shield surrounding the layer consisting of the single monolithic fluoropolymer material, the metallic shield has a shape of a ribbon; the heating cable is flat.