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Author:
Journal / Book Title:
Year:
Volume:
Issue:
zhk- xing lao guan qi
Author(s):
ZHAO Jun
Pages:
48
-
49
Year:
1991
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
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