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在部、局有关部门和勘探所等单位的大力支持与指导下，1979年秋我队开始金刚石小口径绳索取心钻进试验，到83年7月共开动7台钻机，全队生产实现了金刚石绳索取心钻进。一、经济技术效果我队担负地质普查勘探的矿种多，地层情况差别大，岩石可钻性主要为中硬到硬，少量坚硬。由于施工矿区都受地质构造的影响，绝大部分钻孔在钻进过程中，均有不同程度的漏失、掉块或坍塌。自推广使用小口径绳索取心钻进以来，已完工钻孔134个，累计进尺35636米，钻头总平均寿命79.38米/个；年平
In the ministry, the relevant departments and exploration units and other units of the strong support and guidance, the fall of 1979, our team began drilling small diameter diamond core coring test, to July 83 a total of seven rigs were launched, the team achieved production of diamond Coring drilling rope. First, the economic and technological results Our team is responsible for geological survey and exploration of many minerals, stratigraphic differences between the large, rock drillability is mainly hard to hard, a small amount of hard. Due to the influence of geological structure in the construction mining area, most drilling holes have different degrees of leakage, dropout or collapse during the drilling process. Since the promotion of the use of small diameter wire coring drilling has been completed 134 holes, a total footage of 35,636 meters, the total average life expectancy of 79.38 meters bit; / year