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发明名称
Fremgangsmåte for frembringelse av et fôringsrör i et borehull
摘要
申请公布号
NO973280(A)
申请公布日期
1997.07.15
申请号
NO19970003280
申请日期
1997.07.15
申请人
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV
发明人
GILL, DALJIT SINGH;LOHBECK, WILHELMUS CHRISTIANUS MARIA;STEWART, ROBERT BRUCE;VLIET, JACOBUS PETRUS MARIA VAN
分类号
E21B33/14;E21B43/10;(IPC1-7):E21B43/10;E21B29/00
主分类号
E21B33/14
代理机构
代理人
主权项
地址
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