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Posts tagged
'Patrick Pizzo'

Experts say dilbit could have created pressure swings, hydrogen cracks in Pegasus rupture

In the five months since ExxonMobil's Pegasus oil pipeline burst in Arkansas, two things have become clear. Flawed, 1940s-era welding techniques used when the Pegasus was built set the stage for the rupture, and an internal pipeline inspection failed to spot the problem just weeks before the spill.
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