富水砂层水平冻结孔钻孔工艺研究

Research on the drilling process of water rich sand horizontal freezing

通过不排渣保压钻进与混合造孔工艺钻进试验,分析了阻碍钻孔施工的关键因素,提出了保压钻进泥浆循环工艺,实现了保压系统的有效排渣,为水平钻孔施工提供了保障。

Through the drilling experiment of un-slag pressure maintain drilling and mixed drilling technology, this paper analyzed the key factors hindering the drilling construction, put forward the pressure maintain drilling mud circulation process, realized the effective slag of pressure main-tain system, provided guarantee for horizontal drilling construction.