TD265.34
冻结钻钻孔要求高垂直度,通过对施工过的高垂直度钻孔偏斜原因分析,提出并介绍了冻结钻施工中发挥水力作用有利于冻结钻钻孔的防斜降斜。
王永丰,张洪信.冻结钻施工中发挥水力作用的浅见[J].钻探工程,2004,31(4):54-55.. Humble Opinion about Giving Full Scope to Hydraulic Power in Freezing Borehole Drilling[J]. Drilling Engineering, 2004,31(4):54-55.