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经营范围
发明名称
Wellbore electrical heater
摘要
申请公布号
EP0940558(B1)
申请公布日期
2005.01.19
申请号
EP19990200644
申请日期
1999.03.05
申请人
SHELL INTERNATIONALE RESEARCHMAATSCHAPPIJ B.V.
发明人
BIELAMOWICZ, LAWRENCE JAMES;DE ROUFFIGNAC, ERIC;VINEGAR, HAROLD J.;WELLINGTON, SCOTT LEE
分类号
E21B36/04;(IPC1-7):E21B36/04
主分类号
E21B36/04
代理机构
代理人
主权项
地址
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