The server is under maintenance between 08:00 to 12:00 (GMT+08:00), and please visit later.
We apologize for any inconvenience caused
Login  | Sign Up  |  Oriprobe Inc. Feed
China/Asia On Demand
Journal Articles
Laws/Policies/Regulations
Companies/Products
zhk- xing lao guan qi
Author(s): 
Pages: 48-49
Year: Issue:  1
Journal: Exploration Engineering(Drilling & Tunneling)

Keyword:  捞管器接头卡瓦钢珠提钻挡球孔内事故球道打捞矛绳索取心钻杆;
Abstract: <正>在生产实践中发现金刚石绳索取心钻进的一些问题:(1)钻具与孔径环形间隙小,一旦出现孔内事故,处理工具受尺寸限制,可下工具较少,品种单一,给钻孔施工及事故处理带来许多困难;(2)绳索
Related Articles
loading...