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发明名称
Método para a criação de uma carcaça em um furo de sondagem
摘要
申请公布号
BR9607564(A)
申请公布日期
1998.07.07
申请号
BR19960007564
申请日期
1996.01.15
申请人
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.
发明人
JACOBUS PETRUS MARIA VAN VLIET;DALJIT SINGH GILL;ROBERT BRUCE
分类号
E21B33/14;E21B43/10;(IPC1-7):E21B43/10
主分类号
E21B33/14
代理机构
代理人
主权项
地址
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