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Recent content by JoshEng

  1. JoshEng

    Effect of MFL on Corrosion

    Has anyone out there noticed a correlation between pipeline corrosion rate and MFL? In theory, the remanent magnetization following an MFL run should cause an increased corrosion rate, and the effect has been observed in the lab, but the dynamic nature of most pipelines, with changing flow, CP...
  2. JoshEng

    Time to empty a ruptured pipeline

    There must also be some effect of the vaccum formed just after the shutdown valve on the total rate of leakage/flow. I assume the crude oil vaporizes and fills that vacuum at a rate that limits the leakage rate of the pipeline by reducing the pressure until it is filled by vaporization. Is that...
  3. JoshEng

    Time to empty a ruptured pipeline

    The pipeline is carrying crude. The system has a single pump at the input and flows down to the storage facility. This is a real-world problem but I rounded off the numbers to make it easier to analyze; this is going into an engineering and safety evaluation for the pipeline operator (and...
  4. JoshEng

    Time to empty a ruptured pipeline

    I'm struggling to determine the right equations for calculating the flow through a ruptured pipeline to determine the total amount of time before a 20-mile long section will completely empty following a shutdown of the pumps. The goal is to provide a safety plan that includes an estimate of the...

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