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我队一号机对武汉地质学院研制的低温电镀人造金刚石孕镶钻头在ZK101－3号孔进行了生产试验。三个钻头在6～8级火山岩中共进尺285.03米，平均钻头进尺95.01米，最低钻头进尺60.94米，最高钻头进尺150.99米。取得可喜成果，现将试验情况简述如下：一、试验条件1．矿区和地层：试验地区是一个火山岩覆盖的隐伏煤田。ZK101－3号孔是采用金刚石小口径（φ56）进行勘探施工的第一个钻孔。三个钻头试验时钻进的孔深从61.47～
I team a machine on the development of Wuhan Institute of Geology cryogenic plating artificial diamond impregnated drill ZK101-3 hole in the production test. Three drills in the 6 to 8 volcanic rock footage footage of 285.03 meters, the average drill footage into 95.01 meters, the minimum drill footage into 60.94 meters, the maximum drill footage into 150.99 meters. Made gratifying achievements, the test conditions are summarized as follows: First, the test conditions 1. Mines and Strata: The pilot area is a volcanic-covered concealed coalfield. ZK101-3 hole is the first drill with a small diameter diamond (φ56) for exploration and construction. Drilling hole depth from the three drill bit test from 61.47 ~