Oil casing has no corrosion resistance characteristics

Oil casing is one of the main components of oil and natural gas transmission pipeline, in which oil and natural gas directly contact the ground, so the corrosion resistance of oil casing is very high. Classification of oil casing: Oil casing can be divided into steel casing and cast casing. Corrosion-resistant oil casing is generally made of steel.

Casing characteristics of different materials: Oil casing materials are mainly steel, stainless steel, nickel base alloy, copper alloy and galvanized steel. The corrosion resistance of these materials is different. Steel casing corroded easily, stainless steel casing corrosion resistance is strong, nickel base alloy, copper alloy and galvanized steel casing corrosion resistance is the strongest. According to the different applications of oil casing, it is necessary to choose different materials of casing. The characteristics of corrosion resistance of oil casing are mainly reflected in the following aspects: oil casing can effectively resist corrosion. Oil casing has abrasion resistance. Oil casing is not easily deformed. Oil casing has high strength.

Choose a corrosion-resistant casing: Corrosion resistance is an important performance indicator for oil casing, so it must be taken into account when selecting casing materials. Different materials have different corrosion resistance, in general, the corrosion resistance of metal materials is stronger than that of non-metallic materials. When choosing a corrosion-resistant casing, the material should be selected according to the use environment. If it is used in a humid or acidic environment, then you should choose a more corrosion-resistant material. Corrosion-resistant casing is generally more expensive, but the service life is much longer, so choosing corrosion-resistant casing is a wise choice. At present, the corrosion resistance of oil casing is mainly achieved in two ways, that is, the use of high-grade steel casing and the use of special coating materials. For the choice of steel, it is necessary to judge according to the use of oil casing environment.