发明名称 Position indicator for determining the relative position and/or movement of downhole tool componenets and method thereof
摘要 A magnetic sensor array 100 for determining the position of at least one movable component, such as a sliding sleeve, with respect to a fixed component of a downhole tool includes at least one conductor member 104 having a plurality of contact regions spaced apart at first intervals of at least a first length along a longitudinal axis of said at least one conductor member and a plurality of magnetic sensors 102, each one of which is operably coupled to one of said plurality of contact regions and actuatable by a magnetic field from a magnetic actuator.
申请公布号 GB2531782(A) 申请公布日期 2016.05.04
申请号 GB20140019350 申请日期 2014.10.30
申请人 Roxar Flow Measurement AS 发明人 Michael Scott
分类号 E21B47/09;E21B34/00 主分类号 E21B47/09
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