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河南郑州探矿厂利用爆炸人造金刚石研制成聚合体金刚石钻头。自一九七八年十月至一九七九年五月，在我队某矿区一、二号钻机试验，共6个钻头，总进尺784.82米。在6—8级泥质灰岩、轻微硅化白云岩中钻进，取得了平均寿命130.6米/个，平均时效2.08米/时的较好效果。在泥质灰岩中达6.06米/时。爆炸人造金刚石钻头在我队钻进试验情况如下：一、矿区地质简况1．矿区内皱褶、断裂发育，故施工钻孔中均遇不同程
Zhengzhou, Henan Prospecting the use of synthetic diamond exploded synthetic diamond drill bits. From October 1978 to May 1979, a total of 6 drill bits were drilled at No. 1 and No. 2 rigs in a certain mine in our team with a total footage of 784.82 meters. In the 6-8 grade mudstone limestone, slightly silicified dolomite drilling, achieved an average life expectancy of 130.6 meters / month, the average time of 2.08 meters / hour better results. In shaly limestone up to 6.06 m / h. Exploding artificial diamond drill in my team into the test as follows: First, a brief geological conditions 1. Mining area folds, fracture development, so the construction of drilling are encountered in different courses