May 2020, Vol. 247, No. 5

Features

For Inspection and Pressure, How Low Can the Gathering Sector Go?

By Zachary Farrell, C.E.T., ROSEN As natural gas assets are beginning to age, there is a larger need for integrity solutions in this area. The challenge with these assets is that they often operate at lower pressures, which can make running a conventional inline inspection tool difficult.  Figure 1: Eight-inch combination of MFL-A/MD and XYZ technologies. When planning an inspection, the most common question in the gathering sector is, “At how low of a pressure can you run?” The answer to this question is often dependent on the size of the pipeline and the number of fittings and bends in the pipeline. Typically, however, it is for a

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