【摘要】 单牙轮钻头在小井眼钻井中具有良好的经济效益 ,本文通过在单牙轮钻头上分别建立钻头坐标系、牙轮坐标系及牙齿坐标系 ,建立起单牙轮钻头井底切削仿真模型。用计算机绘制出反映单牙轮钻头结构参数和钻井参数的井底轨迹和井壁刮痕 ,对单牙轮钻头的设计和钻井参数选取具有重要意义。更多还原

【Abstract】 One-cone bits offer good efficiency in driling small diameter holes.By building bit coordinate,cone coordinate and tooth coordinate,an emulation model for drilling by one-cone bits at well bottom has been established.It gives a reference to design of one cone bit structure and choice of drilling parameter.更多还原