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　　Hydrostatic test of oil pipeline is an indispensable link in the process of steel pipe processing, production and manufacturing. It is the main method to test the overall product quality of oil pipeline. In a relatively simple way, that is, the test of filling the pipe with water and testing its ability to maintain the relevant specified pressure without leakage or rupture under the pressure bearing mode.

　　The oil pipeline hydrostatic testing machine is suitable for checking and measuring the pressure bearing pressure of oil pipeline. It adopts the way of pressurization cylinder. The pressurization way is convenient, safe and reliable. It is equipped with an automatic control system, which can display the pressure curve in real time, input and output the experimental data and store the test data.

　　According to the strength of steel, the oil pipeline can be divided into different steel grades. The steel grades adopted are also different due to different well conditions and well depths. In corrosive environment, it is also required that the casing itself has corrosion resistance. In places with complex geological conditions, it is also required that the oil pipeline has anti collapse performance. Oil pipeline is a steel pipe suitable for supporting the well wall of oil and gas wells to ensure the normal operation of the whole oil well after drilling and completion. Each well can use several layers of casing according to different drilling depth and geological conditions. Cement cementing shall be adopted after casing running. Unlike oil pipeline and drill pipe, it can not be reused for many times. It is a primary consumable material. Therefore, the consumption of oil pipeline accounts for more than 70% of all oil pipeline. Oil pipeline can be divided into conduit, surface casing, technical casing and reservoir casing according to the application.

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