Ball rotation process installed in crude oil pipelines

2017-01-11View Original

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The crude oil has good physical properties, with a freezing point of -20 to -30°C. The ground temperature remains above 15°C throughout the year. Since it does not need to be transferred through receiving and sending tanks, the ball-rotating process (using pigs to move through the pipeline) is employed – could this pose any risks? There will mainly be a section of oil that is buried underground; is it necessary to drain it? Is there any risk, such as corrosion risk, associated with remaining as a dead oil section for an extended period between two pigging cycles? Please provide an analysis.

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Ball rotation process installed in crude oil pipelines

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