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    • 6. 发明授权
    • Method and apparatus inspecting pipelines using magnetic flux sensors
    • 使用磁通量传感器检测管道的方法和设备
    • US07414395B2
    • 2008-08-19
    • US11277523
    • 2006-03-27
    • Ming GaoSergio LimonRichard Clark McNealyRon Sherstan
    • Ming GaoSergio LimonRichard Clark McNealyRon Sherstan
    • G01N27/72
    • G01N27/82
    • The method for detecting stress corrosion cracking (SCC) of pipelines, comprising the steps of: identifying pipeline locations and pipeline conditions that are amenable to inspection by a magnetic flux inline tool and by a TFI tool; performing two inspections on the pipeline, one inspection performed using the magnetic flux inline (MFL) tool and an other inspection performed using the TFI tool; aligning signal features resulting from the two inspections; identifying TFI signals occurring above a specified threshold; identifying MFL signals for a section of pipeline corresponding to the identified TFI signals; for the identified TFI signals, determining whether the MFL signals are below a second threshold level; designating the sections of the pipeline corresponding to identified TFI signals above the threshold and below the second threshold as a potential corrosion feature; identifying TFI signals that exceed a defined metal loss percentage; measuring a width and length of the signal features, and if the width and length of the signal feature exceed threshold crack width and length values, designating as a potential corrosion feature section of pipeline corresponding to the identified TFI signals.
    • 一种用于检测管道应力腐蚀开裂(SCC)的方法,其特征在于包括以下步骤:识别管道位置和管线条件,以便易于通过磁力线性工具和TFI工具进行检查; 对管道进行两次检查,使用磁力在线(MFL)工具执行一次检查,并使用TFI工具执行其他检查; 对准两次检查产生的信号特征; 识别发生在指定阈值以上的TFI信号; 识别对应于所识别的TFI信号的一段管道的MFL信号; 对于所识别的TFI信号,确定MFL信号是否低于第二阈值电平; 指定对应于高于阈值并低于第二阈值的识别的TFI信号的管线的部分作为潜在腐蚀特征; 识别超过定义的金属损失百分比的TFI信号; 测量信号特征的宽度和长度,如果信号特征的宽度和长度超过阈值裂缝宽度和长度值,则指定为与所识别的TFI信号相对应的管线的潜在腐蚀特征部分。
    • 9. 发明申请
    • METHOD AND APPARATUS INSPECTING PIPELINES USING MAGNETIC FLUX SENSORS
    • 使用磁通量传感器检查管道的方法和装置
    • US20070222436A1
    • 2007-09-27
    • US11277523
    • 2006-03-27
    • Ming GaoSergio LimonRichard Clark McNealyRon Sherstan
    • Ming GaoSergio LimonRichard Clark McNealyRon Sherstan
    • G01N27/82
    • G01N27/82
    • The method for detecting stress corrosion cracking (SCC) of pipelines, comprising the steps of: identifying pipeline locations and pipeline conditions that are amenable to inspection by a magnetic flux inline tool and by a TFI tool; performing two inspections on the pipeline, one inspection performed using the magnetic flux inline (MFL) tool and an other inspection performed using the TFI tool; aligning signal features resulting from the two inspections; identifying TFI signals occurring above a specified threshold; identifying MFL signals for a section of pipeline corresponding to the identified TFI signals; for the identified TFI signals, determining whether the MFL signals are below a second threshold level; designating the sections of the pipeline corresponding to identified TFI signals above the threshold and below the second threshold as a potential corrosion feature; identifying TFI signals that exceed a defined metal loss percentage; measuring a width and length of the signal features, and if the width and length of the signal feature exceed threshold crack width and length values, designating as a potential corrosion feature section of pipeline corresponding to the identified TFI signals.
    • 一种用于检测管道应力腐蚀开裂(SCC)的方法,其特征在于包括以下步骤:识别管道位置和管线条件,以便易于通过磁力线性工具和TFI工具进行检查; 对管道进行两次检查,使用磁力在线(MFL)工具执行一次检查,并使用TFI工具执行其他检查; 对准两次检查产生的信号特征; 识别发生在指定阈值以上的TFI信号; 识别对应于所识别的TFI信号的一段管道的MFL信号; 对于所识别的TFI信号,确定MFL信号是否低于第二阈值电平; 指定对应于高于阈值并低于第二阈值的识别的TFI信号的管线的部分作为潜在腐蚀特征; 识别超过定义的金属损失百分比的TFI信号; 测量信号特征的宽度和长度,如果信号特征的宽度和长度超过阈值裂缝宽度和长度值,则指定为与所识别的TFI信号相对应的管线的潜在腐蚀特征部分。