Modified petroleum pipeline and preparation method thereof

The invention discloses a modified petroleum pipeline and a preparation method thereof, and belongs to the technical field of transportation equipment manufacturing. The modified petroleum pipeline comprises a steel pipe layer, a galvanized layer is arranged on the outer surface of the steel pipe layer, the outer side of the galvanized layer is coated with a magnesium plated layer, a thin aluminumlayer is poured outside the magnesium plated layer, a multi-metal layer is arranged at the inner surface of the steel pipe layer, and the steel pipe layer, the galvanized layer, the magnesium platedlayer, the thin aluminum layer and the multi-metal layer are compounded to form an integral tubular structure. According to the modified petroleum pipeline, the structure is novel, the working principle is clear, the integral tubular structure compounded of the steel pipe layer, the multi-metal layer, the galvanized layer, the magnesium plated layer and the thin aluminum layer is adopted, the corrosion resistance of the mu