The international market for directional drilling equipment 水平定向钻进设备的国际市场
Deep drilling equipment 深孔钻进设备
Safety of unshielded tunnel boring machines and rodless shaft boring machines for rock 钻岩石用无掩蔽的隧道掘进设备和无杆轴钻进设备的安全性
On the basis of front research and summing - up guiding drilling ' s rigs and projects of laying pipeline nation and abroad , develop " guiding drilling ' s rig optimum seeking system " , it provides directive significance for guiding drilling construction 基于以上两方面的研究,在对国内外现有导向钻机设备和导向钻进铺管工程的研究与整理的基础上,开发出了“导向钻进设备优选系统” ,对导向钻进施工具有指导意义。
This thesis preliminarily researched drilling technology of applying foaming dth hammer into hydrology and waterwell drilling beginning with analyzing foaming dth hammer ' s structure characteristics and working principle and joining together with the indoor experiment with respect to the fitting of drilling equipments , designing of grouting system , selecting of drilling program parameters and so on 从分析泡沫潜孔锤的结构特点和工作原理出发,结合室内实验,在钻进设备的配套、灌注系统的设计、钻进规程参数的选择等方面,对泡沫潜孔锤应用于水文水井钻探的钻进工艺进行了研究。