KBR, the Define Phase Engineering Contractor for the West Nile Delta (WND) facilities, employed EPConsult Energies to chair a Critical P&ID Review over a six week period during November and December 2010. The HAZOP format, utilising primary and secondary guidewords to analyse deviations from design intent, was adopted for the review of the main processes. A combination of HAZOP and What If Reviews was used to analyse the utility systems.
A risk ranking was carried out of the hazard events that gave rise to actions and the study report was used to provide input to the SIL Classification Study and to bid materials for the subsequent engineering phase.