发明名称 Cable duct device in a swelling packer
摘要 A cable duct device in a swellable packer ( 1 ) of the kind in which the packer ( 1 ) is adapted to be able of sealing an annulus ( 3 ), and in which the swellable packer ( 1 ) is provided with at least one opening ( 6 ) therethrough adapted to constitute a duct for a cable ( 12 ).
申请公布号 US2007012436(A1) 申请公布日期 2007.01.18
申请号 US20030538330 申请日期 2003.12.09
申请人 FREYER RUNE 发明人 FREYER RUNE
分类号 E21B33/12;E21B17/00;E21B33/127 主分类号 E21B33/12
代理机构 代理人
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