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发明名称
Способ очистки забоя скважин с применением местной циркуляции
摘要
申请公布号
SU126827(A1)
申请公布日期
1959.11.30
申请号
SU19590633737
申请日期
1959.06.08
申请人
KUDRYASHOV B.B.
发明人
KUDRYASHOV B.B.
分类号
E21B21/12;E21B21/14
主分类号
E21B21/12
代理机构
代理人
主权项
地址
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