Effectiveness of Using Double Ejector Drilling Rigs.

被引：0

作者：

Plekhanov, M.I.

Trukhin, G.V.

机构：

来源：

Razvedka i Okhrana Nedr | 1977年 / 12期

关键词：

BOREHOLES - Diamond Drilling;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

It is shown that optimal drilling indices were obtained when double ejector drilling rigs with special impregnated single-layer diamond crowns were used for drilling under complex geological conditions characterized by crushed, highly cracked, and abrasive rocks.

引用

页码：37 / 41