Its application shows that:(1)a"mall-made borehole wall"produced by the side hydraulic tool plays a role of leak protection in the absorbent formation;
侧向水力工具在现场的应用情况表明：（1 ）利用侧向水力工具形成“人造井壁”屏蔽环的方法，在渗漏地层能起到较好的防漏作用；
It has obvious actions of leakproof and lost circulation in low pressure absorbent formation because of containing a lot of foam with high shear force and high structural viscosity.
由于含有大量高切力、高结构粘度的泡沫，在低压渗漏地层有显著的防漏堵漏作用。
However, only the formation of cross-cutting plant fiber paper, there is a non-uniform density distribution, the surface is not smooth, highly absorbent and so on, can not be used in the printing.
然而仅用植物纤维相互交织形成的纸张，存在着密度分布不均匀、表面不平整、吸水极强等问题，不能在印刷中使用。
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