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我司自制的全液压天井钻机,第一阶段试验钻通直径为1.2米高23米的溜矿天井一口,当时看到且显示了它的强大生命力,尤其是在中硬岩石中钻进天井更显示出它的优越性。经过第一阶段的试验也发现了该机本身及使用上存在的一些问题,对该机进行修改后于1977年12月6日开始了第二口天井的钻进试验,结果表明:在岩层地质条件与钻机作业方式完全与钻进第一口天井时相同(见本刊1977年6期第18页)的情况下,该机钻进性能良好,用20天的纯作业时间完成了直径为1.2米,高67米
Our self-made fully hydraulic well drilling rig, the first phase of pilot drilling diameter of 1.2 meters high and 23 meters of a skidding patio, then saw and showed its strong vitality, especially in hard rock into the patio more It shows its superiority. After the first phase of the test also found that the aircraft itself and the use of some of the problems, the aircraft was modified on December 6, 1977 began the second port of the drilling test results show that: in the rock formation geological The conditions and drilling rig operating mode exactly the same as when drilling the first port (see journal 1977 6 6), the drilling machine performance is good, with 20 days of pure work time to complete a diameter of 1.2 Meters, 67 meters high