How to improve the performance of tricone bit?

　　How to improve the performance of tricone bit?

　　The PDC bit is the first drill used in drilling. Assuming that the design is robust, the popular in soft formation can get faster speed and more footage. The scraper bit structure is simple and easy to manufacture. Diamond composite is used as a cutting edge drill bit. The drill is a one-piece drill bit, the whole bit no activity components, structure is simple, has high strength, high wear resistance and impact resistant ability, drilling techniques of the three major new world in the 1980 s. The field application proves that the diamond drill has the advantages of fast speed, more than foot, long life, stable duty, less disturbance and good quality of well.