通过大量的试验数据介绍了ＤＥＩ金刚石增强复合齿的性能、特点和优越性。ＤＥＩ楔形齿一改传统保径齿的被动保径状态，通过优化金刚石的成份、增强齿的强度和韧性、修改现有碳化钨齿的几何形状，从而产生了新一代的进攻型金刚石增强保径合金齿，提高了钻头的保持井径的能力，更可靠地保持了钻头的切削结构，延长了钻头的保持机械钻速的时间，使钻头的使用寿命更长，完井时间更短。 The performance, characteristics and advantages of DEI diamond reinforced composite tooth are introduced through a large amount of experimental data. DEI wedge teeth to change the traditional passive diameter gauge state, by optimizing the composition of diamond to enhance the strength and toughness of teeth, modify the existing tungsten carbide tooth geometry, resulting in a new generation of offensive diamond enhanced Paul diameter The alloy teeth improve the ability of the drill bit to maintain the caliper, more reliably maintain the cutting structure of the drill bit, prolong the maintenance time of the bit, and prolong the service life of the drill bit and shorten the completion time.