论文部分内容阅读
据报道,1975年苏联地质部系统完成钻探1850万米,在第九个五年计划期间共完成8500万米,比第八个五年计划增长7.8%(表1)苏联每年的钻探工作量之大在世界上是少有的,但钻探技术经济指标与瑞典、美国相比仍然是较落后的.1975年全地质系统平均钻探台月效率为470米,台月效的年增长率达到5.5%,而1961～1965期间,年增率只3.1%,1966～1970为3.7%.与1970年相比,台月效率提高27.7%(表
It was reported that in 1975 the Department of Geology of the Soviet Union completed drilling of 18.5 million meters systematically and completed a total of 85 million meters during the ninth five-year plan, an increase of 7.8% over the eighth five-year plan (Table 1). The annual drilling workload in the Soviet Union Large in the world is rare, but the economic indicators of drilling technology and Sweden, the United States is still relatively backward compared to the 1975 average geology system, the average monthly drilling efficiency of 470 meters, Taiwan monthly efficiency of 5.5% , While the annual increase rate was only 3.1% from 1961 to 1965 and 3.7% from 1966 to 1970. Compared with 1970, the efficiency of Taiwan and Taiwan increased by 27.7% (Table