Introducing Holistic Approach for the Design and Operation of FLNG Development

摘要

As is the case with any new technology, floating LNG includes uncertainties and unforeseen risks. Withrnthe methodology proposed in this paper, some of these risks may be identified and mitigated in design andrnoperations. Specifically, the methodology will quantitatively and holistically assess the entire system’srnperformance over the design life. The results of such a study improve stakeholder confidence in thernproposed design, ensure that the limited space on the vessel is used effectively for production, prepare thernsystem for operations by identifying and addressing potential resourcing and operational issues, andrnproject the effects of gas well depletion on the system performance.rnDNV GL will use TARO software to execute the proposed methodology. With this software, it isrnpossible to evaluate equipment in terms of its contribution to planned and unplanned downtime. Repairrndelays, maintenance crew size and availability, spare parts availability, flaring limitations, weatherrnconditions, and limited LNG/LPG/condensate working volumes which impact production can also berncaptured in the model. On an entire-system level, TARO can model the dynamic relationship between thernprocessing facility, storage/loading system and shipping schedule. The results of TARO would be used tornminimize inventory level and optimize LNG carrier sizes and numbers. Depending on the type ofrnnegotiated LNG sales demand contract, demurrage cost can also be quantified.rnThe results generated serve as a feed to cost-benefit analyses used to determine whether or not thernadditional cost associated with the proposed design/operations modification is justified against thernincremental increase in production. This will provide managers with decision support, not only from anrnefficiency standpoint, but also from an economic standpoint.