Client: NPCC Location: Qatar Lowering costs using dynamic simulation and analysis. Xodus Group’s specialists deliver risk reduction and cost savings for the Al-Shaheen field. ChallengeConsidered as one of the most complex offshore developments in Qatar, the Al-Shaheen field produces 300,000 bpd and is operated by Maersk Oil Qatar. National Petroleum Construction Company (NPCC) awarded Xodus Group a contract to analyse, under various operating scenarios, the overall control and operability of two new platforms in block 5. Assignment scope Dynamic simulation of separation, compression, fuel gas and heating medium systemsDynamic analysis of control systemsValidate control valve sizing (including anti-surge valves)Rigorous blowdown analysis to determine maximum rates and minimum temperatures of areas where higher specification piping seems inevitableDynamic models used to close-out Hazard and Operability Analysis (HAZOP) actions that could not be resolved using conventional calculations.Results Ratified control system for normal operating modes and ‘upset’ conditions; start-up, ramp-up, trips and shutdown Evaluated efficacy of final control elements for entire operating envelope of plantDetermined minimum metal temperature and prevented expensive piping material specification.