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发明名称
Dannelse og afbrydelse af koblinger mellem rørsektioner i en borerig
摘要
申请公布号
DK1042581(T3)
申请公布日期
2002.11.11
申请号
DK19970950522T
申请日期
1997.12.24
申请人
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.
发明人
VAN WECHEM, GUSTAAF, LOUIS;BAKKER, THOMAS, WALBURGIS
分类号
E21B19/16;E21B19/20;(IPC1-7):E21B19/16
主分类号
E21B19/16
代理机构
代理人
主权项
地址
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