发明名称 Self-locating downhole devices
摘要 A technique that is usable with a well includes deploying a plurality of location markers in a passageway of the well and deploying an untethered object in the passageway such that the object travels downhole via the passageway. The technique includes using the untethered object to sense proximity of at least some of the location markers as the object travels downhole, and based on the sensing, selectively expand its size to cause the object to become lodged in the passageway near a predetermined location.
申请公布号 US9441470(B2) 申请公布日期 2016.09.13
申请号 US201313903144 申请日期 2013.05.28
申请人 Schlumberger Technology Corporation 发明人 Guerrero Julio C.;Rytlewski Gary L.;Lecerf Bruno;Bertoja Michael J.;Ibeagha Christian;Moody-Stuart Alex;Mooney Adam;Russell Jay;Hopkins Christopher;Paxson Adam;Anthony Billy;Patel Dinesh
分类号 E21B34/14;E21B43/14;E21B33/12;E21B43/119;E21B47/04;E21B47/09;E21B34/06;E21B43/08;E21B43/26;E21B34/00 主分类号 E21B34/14
代理机构 代理人 Peterson Jeffrey R.
主权项 1. A method usable with a well, comprising: deploying a plurality of landmarks in a passageway of the well; deploying an untethered object in the passageway such that the object travels downhole via the passageway, wherein the untethered object comprises an electromagnetic antenna; and using the antenna of the untethered object to sense proximity of at least one of the landmarks as the object travels downhole and based on the sensing, selectively expand its size to cause the object to become lodged in the passageway near a predetermined location.
地址 Sugar Land TX US