SYSTEM FOR SEALING AN ANNULAR SPACE IN A WELLBORE,申请号CA20052557200-传众专利搜索

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发明名称	SYSTEM FOR SEALING AN ANNULAR SPACE IN A WELLBORE
摘要
申请公布号	CA2557200(A1)	申请公布日期	2005.09.29
申请号	CA20052557200	申请日期	2005.03.09
申请人	SHELL CANADA LIMITED	发明人	BOSMA, MARTIN GERARD RENE;CORNELISSEN, ERIK KERST;BAAIJENS, MATHEUS NORBERTUS
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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