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  • Users: Tess72
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  1. Tess72

    Sulphuric Acid pipeline decommissioning

    Hi forum! We are decommissioning a 8" pipeline in service for sulphuric acid 98%, 1 mile. we intend to drain the line and after neutralize, but the problem is reaching a sufficient draining of acid. No drains are installed and the line and seems not piggable due to vertical expansion joints...
  2. Tess72

    leak test of underwater pipeline

    Case of a 40 years old oil pipeline crossing a canal in parallel with other hydrocarbon pipelines. Following a leakage detection, the oil pipeline was repaired by posing internal sleeve of thermosettling resin. the subsequent 48h hydrotest of the pipeline did not show any leakage, even if...

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