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我队金刚石钻进从1976年5月开始试验，至1978年较大规模推广使用，已完成钻探工作量21594米，完工钻孔24个，大部分深1000米左右，去年金刚石小口径钻进占全大队完成钻探工作量的35％以上。主要施工地点102矿区为花岗闪长斑岩铜矿，属双挤山群，岩石由变质沉淀灰岩、凝灰质千枚岩、古生代侵入岩，千枚岩、变质细粒闪长岩和燕山期花岗闪长斑岩组成，岩石可钻性大部为7—8级，部分8—11级，平均孔深为1000米左右，直孔。由于矿区属于三大构造体系的交换部位，岩层挤压破碎历害，陡立发育，断层较多，给钻探施工带来一定困难。
Diamond drilling of our team started from May, 1976 to 1978, and has been widely used. It has completed 21,294 meters of drilling work, completed 24 boreholes, most of which are about 1,000 meters deep. Last year, the small diameter diamond drilling accounted for Brigade completed the drilling workload of more than 35%. The main construction site 102 is a granodiorite porphyry copper deposit belonging to the Shuangqianshan Group. The rocks are composed of metamorphic sedimentary limestone, tuffaceous phyllite, Paleozoic intrusive rock, phyllite, metamorphic fine diorite and Yanshan Period granodiorite porphyry composition, most of the rock drillability of 7-8, part of the 8-11 level, the average hole depth of about 1000 meters, straight hole. Since the mining area belongs to the exchange part of the three major structural systems, the rock formations are crushed and crushed, with steep and vertical development and more faults, which bring some difficulties to drilling construction.