The centralizer is a necessary tool for underground oil production and plays a very important role in the field of petroleum drilling and production. It is simple to manufacture, has a beautiful structure, is sturdy and durable, and has a strong centralizing force. It overcomes the shortcomings of the original welded centralizer that are prone to detachment, and is a centralizer that can ensure the quality of drilling and cementing. There are various types of centralizers, which can be divided into roller type, slider type, automatic reversing type, etc. according to their structure. Centralizers with different structures and materials are suitable for oil wells with different types of eccentric wear. The key technology for using centralizers to prevent eccentric wear is the installation position, spacing, and quantity of centralizers.