【摘要】 根据泡沫的流动特性及泡沫管流实验中所观察到的现象,初步分析了泡沫钻进的护孔机理,指出了泡沫钻进的适用地层。更多还原

【Abstract】 The principles of protecting the wall of the hole were first analysed in this paper based on the flowing properties of foam and on the phenomena observed in the experiment of the foam flowing through pipes, Then, the suitable formations for foam drilling were given.更多还原