There are multiple technologies available for the rapid screening of pipelines for corrosion, including conventional guided wave ultrasonics and in-line inspection techniques that utilize magnetic flux leakage or ultrasound [1]. However, these inspection methods may not be applicable or effective in complex pipeline segments, such as those found in pump stations, metering stations, and tank farms. Furthermore, there are often access limitations for inspecting obstructed portions of pipelines. Some obstructed portions of pipelines, such as areas under supports, are also the most likely location of crevice corrosion.
展开▼
