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发明名称
Method of drilling a wellbore
摘要
申请公布号
GB2468416(B)
申请公布日期
2012.02.01
申请号
GB20100006299
申请日期
2008.11.19
申请人
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.
发明人
PETRUS CORNELIS KRIESELS
分类号
E21B43/10;E21B7/20
主分类号
E21B43/10
代理机构
代理人
主权项
地址
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