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发明名称
Method and system for controlling vibrations in borehole equipment.
摘要
申请公布号
EP0443689(B1)
申请公布日期
1994.07.13
申请号
EP19910200371
申请日期
1991.02.20
申请人
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.
发明人
WORRALL, ROBERT NICHOLAS;STULEMEIJER, IVO PETRUS JOZEF MARIA;JANSEN, JOHAN DIRK;VAN WALSTIJN, BARTHOLOMEUS GERARDUS GOSEWINUS
分类号
E21B41/00;E21B44/00;E21B47/00;(IPC1-7):E21B41/00
主分类号
E21B41/00
代理机构
代理人
主权项
地址
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