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本文综合了勘探技术研究所两年来对刮刀钻头的试验研究成果及生产上应用的经验,提出了各种刮刀钻头的使用规范,指出了利用废旧料制作和在中硬岩层用以代替牙轮钻头等问题,对刮刀钻头结构上的定型化,就地取材自行制作,进一步改进并研究扩大其使用范围都有一定价值,在当前对推行无岩心钻进和快速钻进更有很大意义,希各队能因地制宜地予以推广与应用,并针对这一问题广泛的展开讨论和研究,以进一步提高和发展无岩心钻进的技术,加速钻探工作的高速度发展。1958年地质勘探生产大跃进实践证明,采用无岩心钻进是当前提高钻探效率最重要方法之一。地质部勘探技术研究所按照国家科研项目1014-1对于无岩心钻进用之刮刀钻头合理型式及其使用技术规范,从57年起即与各兄弟单位、院校和野外队共同进行了一系列研究工作,对在中等硬度以下岩石
In this paper, the research results of the scraper bit and its application experience in the past two years are summarized in this paper. The specifications for the use of various scraper bits are put forward. The rules for using scraper bits and the replacement of the roller bit And other issues, the structure of the scraper bit stereotypes, local availability of materials, to further improve and explore the scope of its use have a value, in the current non-core drilling and rapid drilling more meaningful, hope Each team can be popularized and applied according to local conditions and extensively discuss and study this issue so as to further improve and develop non-core drilling technology and accelerate the high-speed development of drilling work. The great leap forward of geological exploration and production in 1958 proved that adopting coreless drilling is one of the most important methods to improve drilling efficiency. According to the National Research Project 1014-1, the Institute of Exploration Technology of the Ministry of Geology has carried out a series of cooperation with various fraternal units, colleges and field teams since 57 for the reasonable type of scraper bit used for coreless drilling and its technical specifications. Research work on rock under medium hardness