根据近年川东油气田钻头的实钻资料,对影响钻头机械钻速的原因进行了分析;结合其地质特点和钻井工艺,对各层段钻头选型进行了详细分析。由此提出了目前川东油气田各层段的钻头优化选型方案,对正确选用钻头、提高钻井效率具有一定的指导作用。 According to the actual drilling data of drill bit in Chuandong oil and gas field in recent years, the reasons that affect the penetration rate of drill bit are analyzed. According to its geological characteristics and drilling technology, the bit selection of each interval is analyzed in detail. Based on this, the optimal bit selection scheme of each section of the Chuandong oil and gas field is put forward, which is of guiding significance for selecting the bit correctly and improving the drilling efficiency.