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Optimal were engaged by a North Sea Operator to carry out a review of the maintenance for a Glycol Dehydration system (including the KO Drum and the Contactor Tower) installed on an FPSO due to reliability and availability issues. The client had limited preventive multidiscipline maintenance being carried, resulting in a largely “fix on fail” approach. Additionally, a number of remedial issues had built up which subsequently came to light when trying to fault find recurrent operational issues.
The Optimal project team carried out a maintenance review using Failure Modes Effects Criticality Analysis (FMECA) and Reliability Centred Maintenance (RCM) principles to derive appropriate maintenance tasks for the system.
The project delivered the following:
The project has demonstrated how a FMECA / RCM analysis can be conducted to produce a revised maintenance regime to facilitate improvements/reduction in downtime and has increased the awareness of the RCM methodology. Overall, Optimal were able to help the client reduce their risk, improve availability and optimise productivity.
