As a commonly used superhard material,cemented carbide has good tempera-ture resistance and wear resistance.It is widely used in downhole tools and has good de-velopment prospects.In this paper,the main categories and research status of cemented carbide are described.The application status of cemented carbide materials in common parts of downhole tools are investigated and analyzed.The performance requirements of cemented carbide materials in the drilling industry are analyzed emphatically.Finally,the key technologies of cemented carbide materials used in downhole tools for deep earth high-temperature drilling are proposed,which provides a reference for the application and de-velopment of cemented carbide materials in the drilling industry.
关键词
硬质合金/井下工具/深部钻探/高温高压
Key words
cemented carbide/downhole tool/deep drilling/high temperature and high pressure