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发明名称
SYSTEM FOR SEALING AN ANNULAR SPACE IN A WELLBORE
摘要
申请公布号
EP1723308(A1)
申请公布日期
2006.11.22
申请号
EP20050729700
申请日期
2005.03.09
申请人
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.;SHELL CANADA LIMITED
发明人
BAAIJENS, MATHEUS NORBERTUS;BOSMA, MARTIN GERARD RENE;CORNELISSEN, ERIK KERST
分类号
E21B33/127;E21B17/10
主分类号
E21B33/127
代理机构
代理人
主权项
地址
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