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石油套管在维持油井运行中的作用

发布时间:2020-04-02 16:40人气:

石油专用管主要用于油、气井的钻探及油、气的输送。它包括石油钻管、石油套管、抽油管。石油钻管主要用于连接钻铤和钻头并传递钻井动力。石油套管主要用于钻井过程中和完井后对井壁的支撑,以保证钻井过程的进行和完井后整个油井的正常运行。抽油管主要将油井底部的油、气输送到地面。
 
Petroleum special pipe is mainly used for drilling of oil and gas wells and transportation of oil and gas. It includes petroleum drilling pipe, petroleum casing pipe, and sucker pipe. Oil drill pipe is mainly used to connect drill collar and drill bit and transmit drilling power. Oil casing is mainly used to support the borehole wall during and after the completion of the well to ensure the normal operation of the well and the completion of the well. The sucker pipe mainly transports oil and gas from the bottom of the well to the surface.
 
石油套管是维持油井运行的生命线。由于地质条件不同,井下受力状态复杂,拉、压、弯、扭应力综合作用作用于管体,这对套管本身的质量提出了较高的要求。一旦套管本身由于某种原因而损坏,可能导致整口井的减产,甚至报废。
 
Oil casing is the lifeline to maintain oil well operation. Due to the different geological conditions and the complex state of the downhole force, the combined effects of tensile, compressive, bending, and torsional stresses act on the pipe body, which places higher requirements on the quality of the casing itself. Once the casing itself is damaged for some reason, it may lead to reduced production of the whole well or even scrap.
 
按钢材本身的强度套管可分为不同钢级,即J55、K55、N80、L80、C90、T95、P110、Q125、V150等。井况、井深不同,采用的钢级也不同。在腐蚀环境下还要求套管本身具有抗腐蚀性能。在地质条件复杂的地方还要求套管具有抗挤毁性能。
 
According to the strength of the steel itself, the casing can be divided into different steel grades, namely J55, K55, N80, L80, C90, T95, P110, Q125, V150 and so on. Different well conditions and depths also use different steel grades. In the corrosive environment, the casing itself is also required to have corrosion resistance. It is also required that the casing has anti-collapse performance in the place with complicated geological conditions.

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