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发明名称
Способ сообщения бурильной колонне осевых ударов, направленных от забоя к устью скважины
摘要
申请公布号
SU122102(A1)
申请公布日期
1958.11.30
申请号
SU19580609046
申请日期
1958.10.07
申请人
PRIPECHKO L.P.
发明人
PRIPECHKO L.P.
分类号
E21B21/00;E21B21/10;E21B31/00
主分类号
E21B21/00
代理机构
代理人
主权项
地址
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