Valhall – Weathering properties and behaviour at sea - In relation to oil spill response - OC2021 A-063
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A standardized weathering study has been conducted on Valhall crude oil at 13 °C in 2021. Dispersibility testing on Valhall included the dispersant Dasic Slickgone NS to estimate the viscosity limits and time window for dispersant use. In a previous study on Valhall (Moldestad et al., 2001), the dispersibility limits were based on Corexit 9500A. The SINTEF Oil Weathering Model (OWM) is used to predict the weathering properties of Valhall at sea. The weathering properties of Valhall are also discussed in relation to oil spill response.