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1. 发明公开

EP3060755A4 INDUCTION LOGGING SENSOR 有权转让
标题翻译： INDUKTIONSMESSSENSOR
公开(公告)号：EP3060755A4
公开(公告)日：2017-06-21
申请号：EP14855572
申请日：2014-10-24
申请人： BAKER HUGHES INC
发明人： REIDERMAN ARCADY , FORGANG STANISLAV W , MORRIS STEVEN A , HOOK JONATHAN F , LIU YI
IPC分类号： G01V3/18 , E21B47/10 , G01V3/36
CPC分类号： G01V3/10 , E21B47/02216 , E21B47/0905 , E21B47/102 , G01V3/104 , G01V3/20 , G01V3/30
摘要： Apparatuses and methods are provided herein that may improve sensitivity to transient signals. For example, an electromagnetic sensor for downhole measurements that includes a plurality of sectors (e.g., four quadrants) is provided herein. Each quadrant may include a magnetic core formed of a material with a high initial magnetic permeability to improve sensitivity to transient signals. A sensor for continuous wave induction tools is also provided, and may include a magnetic core formed of a material with a high initial magnetic permeability. Forming each sector magnetic core of a material with a high mechanical reliability may allow the magnetic core of the corresponding sensor to be pliable and flexible and not brittle and prone to breaking. Furthermore, the corresponding sensor may have enhanced sensitivity, greater stability of sensitivity relative to temperature changes, and high mechanical reliability.
摘要翻译：本文提供了可改善对瞬态信号的灵敏度的设备和方法。例如，本文提供了包括多个扇区（例如，四个象限）的用于井下测量的电磁传感器。每个象限可以包括由具有高初始磁导率的材料形成的磁芯，以提高对瞬态信号的灵敏度。还提供了用于连续波感应工具的传感器，并且可以包括由具有高初始磁导率的材料形成的磁芯。形成具有高机械可靠性的材料的每个扇区磁芯可允许相应传感器的磁芯是柔韧的且柔韧的并且不易碎并且易于断裂。此外，相应的传感器可以具有增强的灵敏度，相对于温度变化的灵敏度更高的稳定性以及高机械可靠性。

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