PROJECT

Preservation of Piping

PROBLEM

Piping systems on newly constructed wellhead towers required preservation from internal corrosion and degradation in the period between commissioning until operation, estimated at several years.

SOLUTION

VpCI®-649 BD was diluted in water and introduced iteratively to various process piping systems and held for a period, after which it was drained back to a holding tank. After each “pump and dump” cycle, a pH test was performed to verify product concentration and facilitate top-up if required. Long-term corrosion control was verified through periodic corrosion coupon retrieval.

 

 Corrosion rates in the system during the contractual preservation period were monitored via corrosion coupons, and satisfactory results were achieved.

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