Abstract: 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 heatin

Abstract: The present invention relates to a heating cable for extraction pipes of viscous hydrocarbon or paraffinic in conventional wells and tight type wells, with flooded ring in eventual or permanent cases, suitable for use between low and high fluid pressure ranges. The cable, flat type with parallel electric conductors, is also suitable for use in both vertical and directional wells with high operational flexibility in a wide range of variables. Each of the electric conductors (2) is covered by a primary insulation layer (3), and the set of conductors is monolithically coated by a main insulating layer (4) made of fluoropolymer material resistant to the high pressure of the surrounding fluid. Outside of the main insulating layer (4), the structure of the cable is complemented with an external shield (5) defined by a thin metallic material layer.

Abstract: A heater cable for hydrocarbon drilling tubing, preferably applicable to pressurized or flooded annular space shale type wells, to prevent and/or remove obstructions in petroleum production wells tubing, caused by the accumulation of substances such as paraffin and hydrates or by a sharp increase in viscosity of the type which extends alongside a metallic thermo conductor duct affixed to the tubing by means of fixation elements. The cable is formed by an inner sheath insulating the electrical conductors, a metallic coat on said conductors' insulating sheath, a fluoropolymeric jacket surrounding said metallic sheath and an outer armor generally defined by a spring which surrounds the jacket in a helicoidal way. The coating of the conductors' insulating sheath is defined by a laminar band which protects all the surface of said sheath arranged in a surrounding way alongside it following a helicoidal arrangement and whose successive spirals are partially overlapped between them.

Abstract: The present invention relates to a heating cable for extraction pipes of viscous hydrocarbon or paraffinic in conventional wells and tight type wells, with flooded ring in eventual or permanent cases, suitable for use between low and high fluid pressure ranges. The cable, flat type with parallel electric conductors, is also suitable for use in both vertical and directional wells with high operational flexibility in a wide range of variables. Each of the electric conductors (2) is covered by a primary insulation layer (3), and the set of conductors is monolithically coated by a main insulating layer (4) made of fluoropolymer material resistant to the high pressure of the surrounding fluid. Outside of the main insulating layer (4), the structure of the cable is complemented with an external shield (5) defined by a thin metallic material layer.

Abstract: A heater cable for hydrocarbon drilling tubing, preferably applicable to pressurized or flooded annular space shale type wells, to prevent and/or remove obstructions in petroleum production wells tubing, caused by the accumulation of substances such as paraffin and hydrates or by a sharp increase in viscosity of the type which extends alongside a metallic thermo conductor duct affixed to the tubing by means of fixation elements. The cable is formed by an inner sheath insulating the electrical conductors, a metallic coat on said conductors' insulating sheath, a fluoropolymeric jacket surrounding said metallic sheath and an outer armour generally defined by a spring which surrounds the jacket in a helicoidal way. The coating of the conductors' insulating sheath is defined by a laminar band which protects all the surface of said sheath arranged in a surrounding way alongside it following a helicoidal arrangement and whose successive spirals are partially overlapped between them.