In recent years, with the development of oil and gas industry, the number of drilling and development of highly deviated wells, horizontal wells, multi-bottom wells and branch wells at home and abroad is increasing. Using laser to cut oil slotted pipe is one of the typical applications of laser cutting technology in petrochemical industry.

In the process of oil drilling, sand control in loose formation is one of the most critical parts in oil well completion and oil production engineering design. Generally, a large number of small gaps are processed around the pipe to block most of the sand layer, while laser cutting can cut the gradient slit with wide outside and narrow inside or narrow outside and narrow inside, which makes the oil screen slit pipe have better performance.