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经营范围
发明名称
Centraliser for an expandable tubular element in a wellbore
摘要
申请公布号
GB0330038(D0)
申请公布日期
2004.01.28
申请号
GB20030030038
申请日期
2002.07.05
申请人
SHELL INTERNATIONAL RESEARCH MAATSCHHAPPIJ B.V.
发明人
分类号
E21B17/10;E21B43/10
主分类号
E21B17/10
代理机构
代理人
主权项
地址
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