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经营范围
发明名称
Forming casing window off whipstock set in cement plug
摘要
申请公布号
EP0690201(B1)
申请公布日期
2000.03.22
申请号
EP19950401517
申请日期
1995.06.26
申请人
SOFITECH N.V.;COMPAGNIE DES SERVICES DOWELL SCHLUMBERGER S.A.
发明人
DOREMUS, DENIS;LEISING, LAWRENCE;SHAHEEN, MANSOUR
分类号
E21B7/06;E21B23/00;E21B29/06;(IPC1-7):E21B29/06
主分类号
E21B7/06
代理机构
代理人
主权项
地址
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