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一九六四年,大庆油田广大钻井工人和技术人员提出了“一只钻头,一天时间,打一口中深井”(简称“大三一”井)的豪迈誓言。几年来,围绕实现这个口号,在钻头、防斜、泥浆、设备改造、工具改革、工艺措施、技术练兵等方面做了很多工作,摸索和积累了一些经验。为了拿下“大三一”井,“三结合”的钻头攻关队根据对六五年试制成功,并为多年来一直沿用的粉沫冶金平底刮刀钻头进行了全面的分析和解剖,抓住钻头的耐磨性(达到一个钻头打一口井的水平)和切削效率(达到一天打一口井的水平,即全井平均机械
In 1964, the majority of drilling workers and technicians in Daqing Oilfield proposed a bold vow of “one drill bit, one day’s time to hit a middle-deep well” (“the junior” well). In the past few years, a great deal of work has been done around the realization of this slogan in drilling, anti-inclined, mud, equipment reform, tool reform, technological measures and technical training, and some experiences have been explored and accumulated. In order to win the “junior” well, “triple combination” drill attack team based on the successful trial in 65, and for many years has been used in a comprehensive analysis and dissection of powder metallurgy flat scraper bit, grab the drill The wear resistance (up to the level of a well drilled) and the cutting efficiency (up to the level of a well a day, that is, the average well machine