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    • 80. 发明申请
    • CALIPER TOOL WITH IN-SITU TEMPERATURE COMPENSATION
    • CALIPER刀具具有原位温度补偿
    • WO2015171546A2
    • 2015-11-12
    • PCT/US2015/029154
    • 2015-05-05
    • PROBE HOLDINGS, INC.
    • OHMER, HerveBECKMAN, MarvinCOLLART, DavidPENLEY, JasonGARIBAY, Juan
    • E21B47/08
    • G01V3/30E21B47/08E21B47/082
    • A tool for evaluating the internal surfaces of tubular is provided, wherein one or more arms extend outwardly from the tool into contact with an inner wall of the tubular, and changes in the dimensions or condition of the inner wall result in changes in the position of the ends of the arms relative to the tool. This motion is converted, through an electromagnetic transducer, into an electrical signal, the accuracy of which deteriorates as the temperature of the tool changes. Calibration transducers are provided on the tool to provide correction factors to convert the electromagnetic transducer output into an accurate reading of the distance of the end of the arms from the tool thereby increasing the accuracy of the assessment of the inner wall of the tubular.
    • 提供了用于评估管状物的内表面的工具,其中一个或多个臂从工具向外延伸成与管状物的内壁接触,并且内部的内部尺寸或状态 壁导致臂的端部相对于工具的位置变化。 该运动通过电磁转换器转换成电信号,其精度随着工具温度变化而降低。 在工具上提供校准传感器以提供校正因子,以将电磁传感器输出转换为臂的端部到工具的距离的精确读数,从而提高管道内壁评估的准确性。 p>