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公开(公告)号:EP3012670A1
公开(公告)日:2016-04-27
申请号:EP14290321.0
申请日:2014-10-22
申请人: Services Petroliers Schlumberger , Schlumberger Holdings Limited , Schlumberger Technology B.V.
发明人: Luling, Martin , Jaidane, Mohamed
摘要: A downhole device includes a closed ring of ferromagnetic material mounted on a conductive pipe (39) and a first coil (38B) spirally wound around the closed ring comprising an electrically conductive flat metallic strip (66B) to substantially cover the closed ring.
摘要翻译: 井下装置包括安装在导电管(39)上的铁磁材料的封闭环和围绕封闭环螺旋缠绕的第一线圈(38B),该第一线圈包括导电的扁平金属条(66B),以基本上覆盖封闭环。