The working conditions in the oil field are relatively harsh. Many metal parts work under heavy loads for a long time, accompanied by corrosion, friction and wear, leading to their premature failure. shorten its service life. Stopping production for inspection and replacing new parts not only increases material costs, but also affects oilfield production, causing losses in many aspects. The wear clearance of friction pairs of many metal parts in the oil field is on the order of nearly millimeters. However, the treatment layer of conventional surface technologies is thin, making it difficult to repair the surface of worn parts, which limits the application scope of these technologies.
As a new surface engineering technology, laser cladding technology has been widely used in many fields. In oil fields, laser cladding is mainly used in oil drill pipes, pumping rods, oil pipelines, etc. Below we will introduce these applications respectively.
- Oil drill pipe
Oil drill pipe is one of the important tools for drilling into formations in oil drilling operations. As the drill pipe is impacted, rubbed and corroded underground, its surface is prone to problems such as cracks, wear and corrosion, seriously affecting the safety and efficiency of drilling operations. In order to solve this problem, laser cladding technology is widely used in the surface strengthening and repair of oil drill pipes.
Through laser cladding technology, a layer of coating with high hardness, corrosion resistance, wear resistance and high temperature resistance is formed on the surface of the drill pipe, which can significantly improve the durability and efficiency of the drill pipe. At the same time, laser cladding technology can also repair damage to the drill pipe surface, extend the service life of the drill pipe, and reduce replacement costs.
- Sucker rod
The sucker rod is one of the important tools for oil production in oil fields. Due to long-term corrosion and friction from underground crude oil, sucker rods are prone to wear, cracks, deformation and other problems, which seriously affects the extraction and efficiency of crude oil. In order to solve this problem, laser cladding technology is widely used in the surface strengthening and repair of sucker rods.
Through laser cladding technology, a layer of high hardness and high toughness coating is formed on the surface of the sucker rod, which can significantly improve the durability and efficiency of the sucker rod. Laser cladding technology can also repair damage to the surface of the sucker rod, extend the service life of the sucker rod, and reduce replacement costs.
- Oil pipeline
Oil pipeline is one of the indispensable and important facilities in oil production. Since the transported crude oil often contains corrosive substances, these substances can cause corrosion and damage to pipelines, seriously affecting the safety and stability of oil production. Therefore, laser cladding technology is widely used in the anti-corrosion and repair of oil pipelines.
Through laser cladding technology, a layer of coating with high corrosion resistance can be formed on the inner and outer surfaces of the pipeline, significantly improving the durability and safety of the pipeline. At the same time, laser cladding technology can also repair damage to the pipeline surface, avoiding accidents such as pipeline leakage and reducing maintenance costs.
In short, the application of laser cladding technology in oil fields can be realized on pumping units, which greatly improves the life and safety of the equipment, and also brings benefits to enterprises and reduces costs.
