Sand erosion Amarinth had recently supplied, via Alderley Systems Limited, two of its API 610 OH2 A series pumps to Apache North Sea for use with their oil and water cyclone separator in the North Sea Forties field. However, Apache underestimated the amount of engrained sand in the well which caused the separators to fail in just 48 hours after commissioning. Although the pump cyclone separator was quickly upgraded with tungsten carbi

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