Анализ рабочего процесса алмазных коронок с двухслойными промывочными каналами и высокой матрицей на забое и их конструктивное совершенствование

Abstract

In the 2000 m deep drilling process of hard rock by wire-line coring drilling, the diamond bit with double-layer waterways and ultra-high matrix can not only maintain a relatively high penetration rate, but also achieve a lifespan of 80 to 100 meters, saving the auxiliary operation time significantly. With the measured data, the paper analyzes the down-hole drilling process of this kind of diamond bit and its merits and drawbacks. The improvement suggestions of structure optimization are also given at the same time.