Stress detection tool using magnetic barkhausen noise
    1.
    发明授权
    Stress detection tool using magnetic barkhausen noise 有权
    应力检测工具使用磁性巴克豪森噪音

    公开(公告)号:US08797033B1

    公开(公告)日:2014-08-05

    申请号:US13253600

    申请日:2011-10-05

    IPC分类号: G01V3/00

    CPC分类号: E21B47/0006 E21B29/00

    摘要: A stress detecting system and method operable to detect stresses in a conduit or pipe includes a tool movable along a conduit or pipe and operable to generate a magnetic field. The tool is operable to sense magnetic Barkhausen noise within the conduit, such as within a wall of the conduit, in response to the tool generating the magnetic field. The stress detecting system is operable to detect a change in stress along the conduit responsive to an output of the tool. The system may detect changes in stress that are caused by geological changes or shifting or thermal changes at or near the conduit to determine changes in stress along the conduit and changes in stress along the conduit over time and during use of the conduit.

    摘要翻译: 可操作以检测管道或管道中的应力的应力检测系统和方法包括可沿导管或管道移动并可操作以产生磁场的工具。 该工具可操作以响应于产生磁场的工具,在导管内感测磁巴克豪森噪声,例如在管道的壁内。 应力检测系统可操作以响应于工具的输出来检测沿管道的应力变化。 该系统可以检测由导管处或附近的地质变化或移动或热变化引起的应力变化,以确定沿着管道的应力变化以及随着时间和管道使用期间沿导管的应力变化。