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金刚石钻探在地质系统推广采用以来已有五年光景了。近三年来，在各级党委的关怀重视下，通过广大钻探技术人员、工人的积极努力，发展速度很快，一九七八年已有27个地质局（处）、141个队开动505台钻机，年完成工作量97万余米，占全年总工作量的17％，全国平均台效298米，纯钻进时间28.7％，优良孔比例62.5％，平均钻头进尺27.8米/个，其中部份省打出了较高水平：如辽宁、吉林、北京地质局平均台效达405—495米；辽宁一队和湖南四○五队还各出现了一台年进尺过万米的机台；黑龙江、北京、吉林地质局纯钻进时间利用率达34.5％—35.6％；山东、河北、福建地质局优良孔比例达81.4—89.9％，特别可喜的是高产钻头大量涌现，江西最高钻头进尺达
Diamond drilling has been in use for more than five years in geological systems. In the past three years, under the care of Party committees at all levels, with the active efforts of the majority of drilling technicians and workers, the pace of development has been very fast. In 1978, there were 27 geological bureaus (departments) and 141 teams of 505 units Drilling rig, the annual completion of the workload of more than 970,000 meters, accounting for 17% of the total work load, the national average efficiency of 298 meters, 28.8% of pure drilling time, excellent hole ratio of 62.5%, the average drill bit footage of 27.8 meters / month, of which Some provinces hit a higher level: such as Liaoning, Jilin, Beijing Geological Bureau of the average efficiency of 405-495 meters; Liaoning team and 400 teams in Hunan also appeared in a year into the machine over 10,000 meters; The utilization rate of pure drilling in Heilongjiang, Beijing and Jilin Bureau of Geology is 34.5% -35.6%. The proportion of fine holes in Shandong, Hebei and Fujian Bureau of Geology is 81.4-89.9%. It is particularly gratifying that a large number of high-yield drill bits have emerged.