In the process of oil drilling, loose formation sand control is one of the most important parts in the design of well completion and oil recovery.

　　The laser cutting machine can cut out a gradient-type slit with a narrow inner widh or a narrow inner thickness in the processing of petroleum tubing, so that the oil screen seam tube has better performance.

　　Laser cutting oil screen seam pipe is non-contact processing, so there is no tool wear; cutting noiseless, easy to realize the automation of processing; laser cutting efficiency is high, usually only a few seconds to process a seam, which is several times the machining efficiency .