Cost-saving solution for ageing North Sea platform Seal type: Flowserve BWI/P GUHTW-4250 & BWI/P GU-3250 Saving £450,000 by upgrading and re-using six Flowserve mechanical seals rather than moving to more costly pressurised double seal systems in the North Sea Client challenge Reduced main oil line (MOL) and MOL booster pump mechanical seal service life was increasing pump outages and costs while seriously jeopardising crude oil output from an ageing North Sea platform. NASH was able to identify the problem and suggest cost-effective solutions that improved the performance of the existing Flowserve BWI/P GUHTW-4250 and Flowserve BWI/P GU-3250 units. Our response An assessment by our team found that: More variable crude from the ageing well had a higher sand and scale content causing abrasi

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