SN?HVIT LIFECYCLE SIMULATOR FROM WELLHEAD THROUGH PIPELINE AND LNG LIQUEFACTION TO OFFLOADING

摘要

The Sm?hvit LNG Development Project, operated by Statoil, represents a pioneer project in the history of LNG. It is the first LNG full-scale liquefaction facility ever built in Europe and is located in one of the most fragile marine areas in the world. The 4.3 MTPA LNG plant is constructed by use of novel technologies with strong focus on high energy efficiency and low emissions. It has therefore been essential to develop a lifecycle simulator to be used in design, commissioning and for operation preparations. This paper gives an outline of the benefits of developing a state-of-the-art engineering and operator training simulator. The simulator model is a comprehensive and high fidelity dynamic simulator model that includes subsea facilities (wells, subsea equipment, flowlines and multi-phase pipelines to shore) and all major parts of the onshore LNG liquefaction plant from slug catcher to LNG off-loading.rnThe system is interfaced with vendor-supplied emulations of the control system and the separate shutdown systems. In plant operation, the online Dynamic Production Model (DPM) of the subsea and inlet facilities will be used by the operators in the control room, to monitor and operate the plant efficiently and safely. It has been recognized that the simulator project has saved considerable time in the commissioning phase of the project. It is also expected that important savings will be done during start-up and in normal operation of the plant.