定向井PDC钻头在中原油田的应用

Application of Directional PDC Bits in Zhongyuan Oilfield

根据中原油田的地层特点和钻井工程的需要设计的定向井ＰＤＣ钻头，具有进尺多，钻速高、井径规则的特点，本文叙述了该ＰＤＣ钻头的设计和使用方法及效果。

According to the formation characteristics and requirements of drilling engineering,the design of directional PDC bits has the advantages of more footage,high ROP and regular borehole. The paper presents the design,operation and results of the bits.