PDC无心钻头结构参数与钻进性能的关系

THE RELATIONSHIP BETWEEN THE STRUCTURE PARAMETERS AND THE DRILLING PROPERTIES OF PDC CENTERLESS BIT

摘要: PDC无心钻头结构参数与钻头钻进性能有密切联系,通过全尺寸钻头室内实钻正交试验,研究了各结构参数与钻头钻进速度的关系,确定了PDC无心钻头优化结构参数组合。

Abstract: The drilling properties of PDC centerless bit are in Close relationship with the structure parameters of the bit, After the orthogonal tests of PDC bits in laboratory and field, the optimum structure parameters of PDC centerless Bit were obtained.