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无论采用何种钻探方法，提高纯钻进时间利用率和小时效率，都直接影响到钻探生产效率和成本。我国地质岩心钻探十多年来纯钻进时间利用率在30％左右徘徊；台月效率在300米左右徘徊；虽小时效率历年有所增长，但幅度很小（1979年大约为1.4米弱）。根据统计资料，1979年全国总平均纯钻进时间利用率为29.7％，但各单位水平不一。列入统计的29个单位纯钻进时间利用率分布情况是：纯钻时间=35—40％：3个单位纯钻时间=30—35％：13个单位
Regardless of the drilling method used, improving both time-to-use and hourly efficiency of drilling directly affect drilling productivity and costs. In the past 10 years, the utilization rate of pure drilling in China’s geological core has been hovering around 30%; the efficiency of Taiwan and Taiwan has hovered around 300 meters; while the hourly efficiency has been increasing over the years, the magnitude is small (about 1.4 meters in 1979) . According to statistics, in 1979, the average total utilization rate of pure drilling time was 29.7%, but the levels of various units varied. Included in the statistics of 29 units of pure drilling time utilization distribution is: pure diamond time = 35-40%: 3 units of pure diamond time = 30-35%: 13 units