论文部分内容阅读
随着金刚石钻进技术的推广,钻进工艺日臻完善、合理;钻头的寿命不断提高,磨耗不断降低.我队钻头平均寿命从1977年的9.8米提高到现在的59.8米,每进尺一米,高度磨耗从0.26毫米降到现在的0.026毫米,平均时效从1977年的0.70米提高到现在的1.73米,因而使钻探成本从1977年每米80元降到31元(1979年全年平均数). 我队290个钻头的损坏情况表明,事故损坏占44%,过量磨损占30%,正常磨损占26%,而正常磨损的钻头中有一部份由于工作层即将耗尽,为了追求最后一点进尺仍继
With the promotion of diamond drilling technology, drilling technology is perfect, reasonable; drill life continues to improve, wear continues to reduce the average life expectancy of our drill bit from 9.8 meters in 1977 to 59.8 meters now, every meter, The high degree of wear and tear dropped from 0.26 millimeters to 0.026 millimeters at present and the average aging time increased from 0.70 meters in 1977 to 1.73 meters now, reducing the cost of drilling from 80 yuan per meter in 1977 to 31 yuan (the annual average for 1979) . The damaged condition of 290 drills of our team showed that 44% of accidental damages, 30% of excess wear and 26% of normal wear, while some of the normally worn drill bits were about to run out due to the working layer being depleted. In order to pursue the last footage Still continue