Use of Ultrasonics for Measuring Sludge, Sediment Levels

In 2013, SGS PfiNDE received a call from a client pipeline company which transports a light hydrocarbon product with entrained particulate and sediment through a 150-mile section of pipeline in Minnesota. The company encountered a challenge when, after cleaning the first 20-mile section of the pipeline, the cleaning tool became blocked by, what was determined to be, the excessive buildup of sediment in front of the cleaning tool. Due to the large amount of sediment in this particular line, the tool had gathered enough sludge to completely stop any further progress of the cleaning pig.