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A UK North Sea platform was experiencing a drop in hydrocarbon production, attributed to an accumulation of sand in the process equipment. A solution was required to remove the sand in the safest, most cost effective manner to restore production to the required output.
The platform had been accumulating large volumes of sand within its gas, oil and water separator vessels leading to a signiﬁcant reduction in the production of hydrocarbons. As a consequence, both plant eﬃciency and revenue generation were compromised. Traditionally, sand removal is undertaken during a planned shutdown which would further impact production, therefore Altrad proposed a solution which would negate the need to shutdown the plant.
Attaching the Altrad online de-sanding ‘syphonvac’ system to the high pressure (HP) and test separators, the Altrad oﬀshore team were able to remove three tonnes of sand and associated well pack while ensuring the plant remained online and fully functional, maximising production and minimising downtime. In total, an estimated 17 days of potential lost production was mitigated.